feat: Add percentage decision policy to x/group (#11072)

## Description

Closes: #10946 

Add a percentage decision policy to group module.

---

### Author Checklist

*All items are required. Please add a note to the item if the item is not applicable and
please add links to any relevant follow up issues.*

I have...

- [ ] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] added `!` to the type prefix if API or client breaking change
- [ ] targeted the correct branch (see [PR Targeting](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#pr-targeting))
- [ ] provided a link to the relevant issue or specification
- [ ] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/master/docs/building-modules)
- [ ] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#testing)
- [ ] added a changelog entry to `CHANGELOG.md`
- [ ] included comments for [documenting Go code](https://blog.golang.org/godoc)
- [ ] updated the relevant documentation or specification
- [ ] reviewed "Files changed" and left comments if necessary
- [ ] confirmed all CI checks have passed

### Reviewers Checklist

*All items are required. Please add a note if the item is not applicable and please add
your handle next to the items reviewed if you only reviewed selected items.*

I have...

- [ ] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] confirmed `!` in the type prefix if API or client breaking change
- [ ] confirmed all author checklist items have been addressed 
- [ ] reviewed state machine logic
- [ ] reviewed API design and naming
- [ ] reviewed documentation is accurate
- [ ] reviewed tests and test coverage
- [ ] manually tested (if applicable)

api/cosmos/group/v1beta1/types.pulsar.go

@@ -1639,6 +1639,505 @@ func (x *fastReflection_ThresholdDecisionPolicy) ProtoMethods() *protoiface.Meth
 	}
 }
 
+var (
+	md_PercentageDecisionPolicy            protoreflect.MessageDescriptor
+	fd_PercentageDecisionPolicy_percentage protoreflect.FieldDescriptor
+	fd_PercentageDecisionPolicy_timeout    protoreflect.FieldDescriptor
+)
+
+func init() {
+	file_cosmos_group_v1beta1_types_proto_init()
+	md_PercentageDecisionPolicy = File_cosmos_group_v1beta1_types_proto.Messages().ByName("PercentageDecisionPolicy")
+	fd_PercentageDecisionPolicy_percentage = md_PercentageDecisionPolicy.Fields().ByName("percentage")
+	fd_PercentageDecisionPolicy_timeout = md_PercentageDecisionPolicy.Fields().ByName("timeout")
+}
+
+var _ protoreflect.Message = (*fastReflection_PercentageDecisionPolicy)(nil)
+
+type fastReflection_PercentageDecisionPolicy PercentageDecisionPolicy
+
+func (x *PercentageDecisionPolicy) ProtoReflect() protoreflect.Message {
+	return (*fastReflection_PercentageDecisionPolicy)(x)
+}
+
+func (x *PercentageDecisionPolicy) slowProtoReflect() protoreflect.Message {
+	mi := &file_cosmos_group_v1beta1_types_proto_msgTypes[3]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+var _fastReflection_PercentageDecisionPolicy_messageType fastReflection_PercentageDecisionPolicy_messageType
+var _ protoreflect.MessageType = fastReflection_PercentageDecisionPolicy_messageType{}
+
+type fastReflection_PercentageDecisionPolicy_messageType struct{}
+
+func (x fastReflection_PercentageDecisionPolicy_messageType) Zero() protoreflect.Message {
+	return (*fastReflection_PercentageDecisionPolicy)(nil)
+}
+func (x fastReflection_PercentageDecisionPolicy_messageType) New() protoreflect.Message {
+	return new(fastReflection_PercentageDecisionPolicy)
+}
+func (x fastReflection_PercentageDecisionPolicy_messageType) Descriptor() protoreflect.MessageDescriptor {
+	return md_PercentageDecisionPolicy
+}
+
+// Descriptor returns message descriptor, which contains only the protobuf
+// type information for the message.
+func (x *fastReflection_PercentageDecisionPolicy) Descriptor() protoreflect.MessageDescriptor {
+	return md_PercentageDecisionPolicy
+}
+
+// Type returns the message type, which encapsulates both Go and protobuf
+// type information. If the Go type information is not needed,
+// it is recommended that the message descriptor be used instead.
+func (x *fastReflection_PercentageDecisionPolicy) Type() protoreflect.MessageType {
+	return _fastReflection_PercentageDecisionPolicy_messageType
+}
+
+// New returns a newly allocated and mutable empty message.
+func (x *fastReflection_PercentageDecisionPolicy) New() protoreflect.Message {
+	return new(fastReflection_PercentageDecisionPolicy)
+}
+
+// Interface unwraps the message reflection interface and
+// returns the underlying ProtoMessage interface.
+func (x *fastReflection_PercentageDecisionPolicy) Interface() protoreflect.ProtoMessage {
+	return (*PercentageDecisionPolicy)(x)
+}
+
+// Range iterates over every populated field in an undefined order,
+// calling f for each field descriptor and value encountered.
+// Range returns immediately if f returns false.
+// While iterating, mutating operations may only be performed
+// on the current field descriptor.
+func (x *fastReflection_PercentageDecisionPolicy) Range(f func(protoreflect.FieldDescriptor, protoreflect.Value) bool) {
+	if x.Percentage != "" {
+		value := protoreflect.ValueOfString(x.Percentage)
+		if !f(fd_PercentageDecisionPolicy_percentage, value) {
+			return
+		}
+	}
+	if x.Timeout != nil {
+		value := protoreflect.ValueOfMessage(x.Timeout.ProtoReflect())
+		if !f(fd_PercentageDecisionPolicy_timeout, value) {
+			return
+		}
+	}
+}
+
+// Has reports whether a field is populated.
+//
+// Some fields have the property of nullability where it is possible to
+// distinguish between the default value of a field and whether the field
+// was explicitly populated with the default value. Singular message fields,
+// member fields of a oneof, and proto2 scalar fields are nullable. Such
+// fields are populated only if explicitly set.
+//
+// In other cases (aside from the nullable cases above),
+// a proto3 scalar field is populated if it contains a non-zero value, and
+// a repeated field is populated if it is non-empty.
+func (x *fastReflection_PercentageDecisionPolicy) Has(fd protoreflect.FieldDescriptor) bool {
+	switch fd.FullName() {
+	case "cosmos.group.v1beta1.PercentageDecisionPolicy.percentage":
+		return x.Percentage != ""
+	case "cosmos.group.v1beta1.PercentageDecisionPolicy.timeout":
+		return x.Timeout != nil
+	default:
+		if fd.IsExtension() {
+			panic(fmt.Errorf("proto3 declared messages do not support extensions: cosmos.group.v1beta1.PercentageDecisionPolicy"))
+		}
+		panic(fmt.Errorf("message cosmos.group.v1beta1.PercentageDecisionPolicy does not contain field %s", fd.FullName()))
+	}
+}
+
+// Clear clears the field such that a subsequent Has call reports false.
+//
+// Clearing an extension field clears both the extension type and value
+// associated with the given field number.
+//
+// Clear is a mutating operation and unsafe for concurrent use.
+func (x *fastReflection_PercentageDecisionPolicy) Clear(fd protoreflect.FieldDescriptor) {
+	switch fd.FullName() {
+	case "cosmos.group.v1beta1.PercentageDecisionPolicy.percentage":
+		x.Percentage = ""
+	case "cosmos.group.v1beta1.PercentageDecisionPolicy.timeout":
+		x.Timeout = nil
+	default:
+		if fd.IsExtension() {
+			panic(fmt.Errorf("proto3 declared messages do not support extensions: cosmos.group.v1beta1.PercentageDecisionPolicy"))
+		}
+		panic(fmt.Errorf("message cosmos.group.v1beta1.PercentageDecisionPolicy does not contain field %s", fd.FullName()))
+	}
+}
+
+// Get retrieves the value for a field.
+//
+// For unpopulated scalars, it returns the default value, where
+// the default value of a bytes scalar is guaranteed to be a copy.
+// For unpopulated composite types, it returns an empty, read-only view
+// of the value; to obtain a mutable reference, use Mutable.
+func (x *fastReflection_PercentageDecisionPolicy) Get(descriptor protoreflect.FieldDescriptor) protoreflect.Value {
+	switch descriptor.FullName() {
+	case "cosmos.group.v1beta1.PercentageDecisionPolicy.percentage":
+		value := x.Percentage
+		return protoreflect.ValueOfString(value)
+	case "cosmos.group.v1beta1.PercentageDecisionPolicy.timeout":
+		value := x.Timeout
+		return protoreflect.ValueOfMessage(value.ProtoReflect())
+	default:
+		if descriptor.IsExtension() {
+			panic(fmt.Errorf("proto3 declared messages do not support extensions: cosmos.group.v1beta1.PercentageDecisionPolicy"))
+		}
+		panic(fmt.Errorf("message cosmos.group.v1beta1.PercentageDecisionPolicy does not contain field %s", descriptor.FullName()))
+	}
+}
+
+// Set stores the value for a field.
+//
+// For a field belonging to a oneof, it implicitly clears any other field
+// that may be currently set within the same oneof.
+// For extension fields, it implicitly stores the provided ExtensionType.
+// When setting a composite type, it is unspecified whether the stored value
+// aliases the source's memory in any way. If the composite value is an
+// empty, read-only value, then it panics.
+//
+// Set is a mutating operation and unsafe for concurrent use.
+func (x *fastReflection_PercentageDecisionPolicy) Set(fd protoreflect.FieldDescriptor, value protoreflect.Value) {
+	switch fd.FullName() {
+	case "cosmos.group.v1beta1.PercentageDecisionPolicy.percentage":
+		x.Percentage = value.Interface().(string)
+	case "cosmos.group.v1beta1.PercentageDecisionPolicy.timeout":
+		x.Timeout = value.Message().Interface().(*durationpb.Duration)
+	default:
+		if fd.IsExtension() {
+			panic(fmt.Errorf("proto3 declared messages do not support extensions: cosmos.group.v1beta1.PercentageDecisionPolicy"))
+		}
+		panic(fmt.Errorf("message cosmos.group.v1beta1.PercentageDecisionPolicy does not contain field %s", fd.FullName()))
+	}
+}
+
+// Mutable returns a mutable reference to a composite type.
+//
+// If the field is unpopulated, it may allocate a composite value.
+// For a field belonging to a oneof, it implicitly clears any other field
+// that may be currently set within the same oneof.
+// For extension fields, it implicitly stores the provided ExtensionType
+// if not already stored.
+// It panics if the field does not contain a composite type.
+//
+// Mutable is a mutating operation and unsafe for concurrent use.
+func (x *fastReflection_PercentageDecisionPolicy) Mutable(fd protoreflect.FieldDescriptor) protoreflect.Value {
+	switch fd.FullName() {
+	case "cosmos.group.v1beta1.PercentageDecisionPolicy.timeout":
+		if x.Timeout == nil {
+			x.Timeout = new(durationpb.Duration)
+		}
+		return protoreflect.ValueOfMessage(x.Timeout.ProtoReflect())
+	case "cosmos.group.v1beta1.PercentageDecisionPolicy.percentage":
+		panic(fmt.Errorf("field percentage of message cosmos.group.v1beta1.PercentageDecisionPolicy is not mutable"))
+	default:
+		if fd.IsExtension() {
+			panic(fmt.Errorf("proto3 declared messages do not support extensions: cosmos.group.v1beta1.PercentageDecisionPolicy"))
+		}
+		panic(fmt.Errorf("message cosmos.group.v1beta1.PercentageDecisionPolicy does not contain field %s", fd.FullName()))
+	}
+}
+
+// NewField returns a new value that is assignable to the field
+// for the given descriptor. For scalars, this returns the default value.
+// For lists, maps, and messages, this returns a new, empty, mutable value.
+func (x *fastReflection_PercentageDecisionPolicy) NewField(fd protoreflect.FieldDescriptor) protoreflect.Value {
+	switch fd.FullName() {
+	case "cosmos.group.v1beta1.PercentageDecisionPolicy.percentage":
+		return protoreflect.ValueOfString("")
+	case "cosmos.group.v1beta1.PercentageDecisionPolicy.timeout":
+		m := new(durationpb.Duration)
+		return protoreflect.ValueOfMessage(m.ProtoReflect())
+	default:
+		if fd.IsExtension() {
+			panic(fmt.Errorf("proto3 declared messages do not support extensions: cosmos.group.v1beta1.PercentageDecisionPolicy"))
+		}
+		panic(fmt.Errorf("message cosmos.group.v1beta1.PercentageDecisionPolicy does not contain field %s", fd.FullName()))
+	}
+}
+
+// WhichOneof reports which field within the oneof is populated,
+// returning nil if none are populated.
+// It panics if the oneof descriptor does not belong to this message.
+func (x *fastReflection_PercentageDecisionPolicy) WhichOneof(d protoreflect.OneofDescriptor) protoreflect.FieldDescriptor {
+	switch d.FullName() {
+	default:
+		panic(fmt.Errorf("%s is not a oneof field in cosmos.group.v1beta1.PercentageDecisionPolicy", d.FullName()))
+	}
+	panic("unreachable")
+}
+
+// GetUnknown retrieves the entire list of unknown fields.
+// The caller may only mutate the contents of the RawFields
+// if the mutated bytes are stored back into the message with SetUnknown.
+func (x *fastReflection_PercentageDecisionPolicy) GetUnknown() protoreflect.RawFields {
+	return x.unknownFields
+}
+
+// SetUnknown stores an entire list of unknown fields.
+// The raw fields must be syntactically valid according to the wire format.
+// An implementation may panic if this is not the case.
+// Once stored, the caller must not mutate the content of the RawFields.
+// An empty RawFields may be passed to clear the fields.
+//
+// SetUnknown is a mutating operation and unsafe for concurrent use.
+func (x *fastReflection_PercentageDecisionPolicy) SetUnknown(fields protoreflect.RawFields) {
+	x.unknownFields = fields
+}
+
+// IsValid reports whether the message is valid.
+//
+// An invalid message is an empty, read-only value.
+//
+// An invalid message often corresponds to a nil pointer of the concrete
+// message type, but the details are implementation dependent.
+// Validity is not part of the protobuf data model, and may not
+// be preserved in marshaling or other operations.
+func (x *fastReflection_PercentageDecisionPolicy) IsValid() bool {
+	return x != nil
+}
+
+// ProtoMethods returns optional fastReflectionFeature-path implementations of various operations.
+// This method may return nil.
+//
+// The returned methods type is identical to
+// "google.golang.org/protobuf/runtime/protoiface".Methods.
+// Consult the protoiface package documentation for details.
+func (x *fastReflection_PercentageDecisionPolicy) ProtoMethods() *protoiface.Methods {
+	size := func(input protoiface.SizeInput) protoiface.SizeOutput {
+		x := input.Message.Interface().(*PercentageDecisionPolicy)
+		if x == nil {
+			return protoiface.SizeOutput{
+				NoUnkeyedLiterals: input.NoUnkeyedLiterals,
+				Size:              0,
+			}
+		}
+		options := runtime.SizeInputToOptions(input)
+		_ = options
+		var n int
+		var l int
+		_ = l
+		l = len(x.Percentage)
+		if l > 0 {
+			n += 1 + l + runtime.Sov(uint64(l))
+		}
+		if x.Timeout != nil {
+			l = options.Size(x.Timeout)
+			n += 1 + l + runtime.Sov(uint64(l))
+		}
+		if x.unknownFields != nil {
+			n += len(x.unknownFields)
+		}
+		return protoiface.SizeOutput{
+			NoUnkeyedLiterals: input.NoUnkeyedLiterals,
+			Size:              n,
+		}
+	}
+
+	marshal := func(input protoiface.MarshalInput) (protoiface.MarshalOutput, error) {
+		x := input.Message.Interface().(*PercentageDecisionPolicy)
+		if x == nil {
+			return protoiface.MarshalOutput{
+				NoUnkeyedLiterals: input.NoUnkeyedLiterals,
+				Buf:               input.Buf,
+			}, nil
+		}
+		options := runtime.MarshalInputToOptions(input)
+		_ = options
+		size := options.Size(x)
+		dAtA := make([]byte, size)
+		i := len(dAtA)
+		_ = i
+		var l int
+		_ = l
+		if x.unknownFields != nil {
+			i -= len(x.unknownFields)
+			copy(dAtA[i:], x.unknownFields)
+		}
+		if x.Timeout != nil {
+			encoded, err := options.Marshal(x.Timeout)
+			if err != nil {
+				return protoiface.MarshalOutput{
+					NoUnkeyedLiterals: input.NoUnkeyedLiterals,
+					Buf:               input.Buf,
+				}, err
+			}
+			i -= len(encoded)
+			copy(dAtA[i:], encoded)
+			i = runtime.EncodeVarint(dAtA, i, uint64(len(encoded)))
+			i--
+			dAtA[i] = 0x12
+		}
+		if len(x.Percentage) > 0 {
+			i -= len(x.Percentage)
+			copy(dAtA[i:], x.Percentage)
+			i = runtime.EncodeVarint(dAtA, i, uint64(len(x.Percentage)))
+			i--
+			dAtA[i] = 0xa
+		}
+		if input.Buf != nil {
+			input.Buf = append(input.Buf, dAtA...)
+		} else {
+			input.Buf = dAtA
+		}
+		return protoiface.MarshalOutput{
+			NoUnkeyedLiterals: input.NoUnkeyedLiterals,
+			Buf:               input.Buf,
+		}, nil
+	}
+	unmarshal := func(input protoiface.UnmarshalInput) (protoiface.UnmarshalOutput, error) {
+		x := input.Message.Interface().(*PercentageDecisionPolicy)
+		if x == nil {
+			return protoiface.UnmarshalOutput{
+				NoUnkeyedLiterals: input.NoUnkeyedLiterals,
+				Flags:             input.Flags,
+			}, nil
+		}
+		options := runtime.UnmarshalInputToOptions(input)
+		_ = options
+		dAtA := input.Buf
+		l := len(dAtA)
+		iNdEx := 0
+		for iNdEx < l {
+			preIndex := iNdEx
+			var wire uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, runtime.ErrIntOverflow
+				}
+				if iNdEx >= l {
+					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				wire |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			fieldNum := int32(wire >> 3)
+			wireType := int(wire & 0x7)
+			if wireType == 4 {
+				return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, fmt.Errorf("proto: PercentageDecisionPolicy: wiretype end group for non-group")
+			}
+			if fieldNum <= 0 {
+				return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, fmt.Errorf("proto: PercentageDecisionPolicy: illegal tag %d (wire type %d)", fieldNum, wire)
+			}
+			switch fieldNum {
+			case 1:
+				if wireType != 2 {
+					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, fmt.Errorf("proto: wrong wireType = %d for field Percentage", wireType)
+				}
+				var stringLen uint64
+				for shift := uint(0); ; shift += 7 {
+					if shift >= 64 {
+						return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, runtime.ErrIntOverflow
+					}
+					if iNdEx >= l {
+						return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, io.ErrUnexpectedEOF
+					}
+					b := dAtA[iNdEx]
+					iNdEx++
+					stringLen |= uint64(b&0x7F) << shift
+					if b < 0x80 {
+						break
+					}
+				}
+				intStringLen := int(stringLen)
+				if intStringLen < 0 {
+					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, runtime.ErrInvalidLength
+				}
+				postIndex := iNdEx + intStringLen
+				if postIndex < 0 {
+					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, runtime.ErrInvalidLength
+				}
+				if postIndex > l {
+					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, io.ErrUnexpectedEOF
+				}
+				x.Percentage = string(dAtA[iNdEx:postIndex])
+				iNdEx = postIndex
+			case 2:
+				if wireType != 2 {
+					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, fmt.Errorf("proto: wrong wireType = %d for field Timeout", wireType)
+				}
+				var msglen int
+				for shift := uint(0); ; shift += 7 {
+					if shift >= 64 {
+						return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, runtime.ErrIntOverflow
+					}
+					if iNdEx >= l {
+						return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, io.ErrUnexpectedEOF
+					}
+					b := dAtA[iNdEx]
+					iNdEx++
+					msglen |= int(b&0x7F) << shift
+					if b < 0x80 {
+						break
+					}
+				}
+				if msglen < 0 {
+					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, runtime.ErrInvalidLength
+				}
+				postIndex := iNdEx + msglen
+				if postIndex < 0 {
+					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, runtime.ErrInvalidLength
+				}
+				if postIndex > l {
+					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, io.ErrUnexpectedEOF
+				}
+				if x.Timeout == nil {
+					x.Timeout = &durationpb.Duration{}
+				}
+				if err := options.Unmarshal(dAtA[iNdEx:postIndex], x.Timeout); err != nil {
+					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, err
+				}
+				iNdEx = postIndex
+			default:
+				iNdEx = preIndex
+				skippy, err := runtime.Skip(dAtA[iNdEx:])
+				if err != nil {
+					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, err
+				}
+				if (skippy < 0) || (iNdEx+skippy) < 0 {
+					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, runtime.ErrInvalidLength
+				}
+				if (iNdEx + skippy) > l {
+					return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, io.ErrUnexpectedEOF
+				}
+				if !options.DiscardUnknown {
+					x.unknownFields = append(x.unknownFields, dAtA[iNdEx:iNdEx+skippy]...)
+				}
+				iNdEx += skippy
+			}
+		}
+
+		if iNdEx > l {
+			return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, io.ErrUnexpectedEOF
+		}
+		return protoiface.UnmarshalOutput{NoUnkeyedLiterals: input.NoUnkeyedLiterals, Flags: input.Flags}, nil
+	}
+	return &protoiface.Methods{
+		NoUnkeyedLiterals: struct{}{},
+		Flags:             protoiface.SupportMarshalDeterministic | protoiface.SupportUnmarshalDiscardUnknown,
+		Size:              size,
+		Marshal:           marshal,
+		Unmarshal:         unmarshal,
+		Merge:             nil,
+		CheckInitialized:  nil,
+	}
+}
+
 var (
 	md_GroupInfo              protoreflect.MessageDescriptor
 	fd_GroupInfo_group_id     protoreflect.FieldDescriptor
@@ -1669,7 +2168,7 @@ func (x *GroupInfo) ProtoReflect() protoreflect.Message {
 }
 
 func (x *GroupInfo) slowProtoReflect() protoreflect.Message {
-	mi := &file_cosmos_group_v1beta1_types_proto_msgTypes[3]
+	mi := &file_cosmos_group_v1beta1_types_proto_msgTypes[4]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -2386,7 +2885,7 @@ func (x *GroupMember) ProtoReflect() protoreflect.Message {
 }
 
 func (x *GroupMember) slowProtoReflect() protoreflect.Message {
-	mi := &file_cosmos_group_v1beta1_types_proto_msgTypes[4]
+	mi := &file_cosmos_group_v1beta1_types_proto_msgTypes[5]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -2879,7 +3378,7 @@ func (x *GroupPolicyInfo) ProtoReflect() protoreflect.Message {
 }
 
 func (x *GroupPolicyInfo) slowProtoReflect() protoreflect.Message {
-	mi := &file_cosmos_group_v1beta1_types_proto_msgTypes[5]
+	mi := &file_cosmos_group_v1beta1_types_proto_msgTypes[6]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -3792,7 +4291,7 @@ func (x *Proposal) ProtoReflect() protoreflect.Message {
 }
 
 func (x *Proposal) slowProtoReflect() protoreflect.Message {
-	mi := &file_cosmos_group_v1beta1_types_proto_msgTypes[6]
+	mi := &file_cosmos_group_v1beta1_types_proto_msgTypes[7]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -4950,7 +5449,7 @@ func (x *Tally) ProtoReflect() protoreflect.Message {
 }
 
 func (x *Tally) slowProtoReflect() protoreflect.Message {
-	mi := &file_cosmos_group_v1beta1_types_proto_msgTypes[7]
+	mi := &file_cosmos_group_v1beta1_types_proto_msgTypes[8]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -5564,7 +6063,7 @@ func (x *Vote) ProtoReflect() protoreflect.Message {
 }
 
 func (x *Vote) slowProtoReflect() protoreflect.Message {
-	mi := &file_cosmos_group_v1beta1_types_proto_msgTypes[8]
+	mi := &file_cosmos_group_v1beta1_types_proto_msgTypes[9]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -6330,7 +6829,7 @@ func (x Proposal_Status) Number() protoreflect.EnumNumber {
 
 // Deprecated: Use Proposal_Status.Descriptor instead.
 func (Proposal_Status) EnumDescriptor() ([]byte, []int) {
-	return file_cosmos_group_v1beta1_types_proto_rawDescGZIP(), []int{6, 0}
+	return file_cosmos_group_v1beta1_types_proto_rawDescGZIP(), []int{7, 0}
 }
 
 // Result defines types of proposal results.
@@ -6387,7 +6886,7 @@ func (x Proposal_Result) Number() protoreflect.EnumNumber {
 
 // Deprecated: Use Proposal_Result.Descriptor instead.
 func (Proposal_Result) EnumDescriptor() ([]byte, []int) {
-	return file_cosmos_group_v1beta1_types_proto_rawDescGZIP(), []int{6, 1}
+	return file_cosmos_group_v1beta1_types_proto_rawDescGZIP(), []int{7, 1}
 }
 
 // ExecutorResult defines types of proposal executor results.
@@ -6444,7 +6943,7 @@ func (x Proposal_ExecutorResult) Number() protoreflect.EnumNumber {
 
 // Deprecated: Use Proposal_ExecutorResult.Descriptor instead.
 func (Proposal_ExecutorResult) EnumDescriptor() ([]byte, []int) {
-	return file_cosmos_group_v1beta1_types_proto_rawDescGZIP(), []int{6, 2}
+	return file_cosmos_group_v1beta1_types_proto_rawDescGZIP(), []int{7, 2}
 }
 
 // Member represents a group member with an account address,
@@ -6596,6 +7095,53 @@ func (x *ThresholdDecisionPolicy) GetTimeout() *durationpb.Duration {
 	return nil
 }
 
+// PercentageDecisionPolicy implements the DecisionPolicy interface
+type PercentageDecisionPolicy struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// percentage is the minimum percentage the weighted sum of yes votes must met for a proposal to succeed.
+	Percentage string `protobuf:"bytes,1,opt,name=percentage,proto3" json:"percentage,omitempty"`
+	// timeout is the duration from submission of a proposal to the end of voting period
+	// Within this times votes and exec messages can be submitted.
+	Timeout *durationpb.Duration `protobuf:"bytes,2,opt,name=timeout,proto3" json:"timeout,omitempty"`
+}
+
+func (x *PercentageDecisionPolicy) Reset() {
+	*x = PercentageDecisionPolicy{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_cosmos_group_v1beta1_types_proto_msgTypes[3]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *PercentageDecisionPolicy) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*PercentageDecisionPolicy) ProtoMessage() {}
+
+// Deprecated: Use PercentageDecisionPolicy.ProtoReflect.Descriptor instead.
+func (*PercentageDecisionPolicy) Descriptor() ([]byte, []int) {
+	return file_cosmos_group_v1beta1_types_proto_rawDescGZIP(), []int{3}
+}
+
+func (x *PercentageDecisionPolicy) GetPercentage() string {
+	if x != nil {
+		return x.Percentage
+	}
+	return ""
+}
+
+func (x *PercentageDecisionPolicy) GetTimeout() *durationpb.Duration {
+	if x != nil {
+		return x.Timeout
+	}
+	return nil
+}
+
 // GroupInfo represents the high-level on-chain information for a group.
 type GroupInfo struct {
 	state         protoimpl.MessageState
@@ -6622,7 +7168,7 @@ type GroupInfo struct {
 func (x *GroupInfo) Reset() {
 	*x = GroupInfo{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_cosmos_group_v1beta1_types_proto_msgTypes[3]
+		mi := &file_cosmos_group_v1beta1_types_proto_msgTypes[4]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -6636,7 +7182,7 @@ func (*GroupInfo) ProtoMessage() {}
 
 // Deprecated: Use GroupInfo.ProtoReflect.Descriptor instead.
 func (*GroupInfo) Descriptor() ([]byte, []int) {
-	return file_cosmos_group_v1beta1_types_proto_rawDescGZIP(), []int{3}
+	return file_cosmos_group_v1beta1_types_proto_rawDescGZIP(), []int{4}
 }
 
 func (x *GroupInfo) GetGroupId() uint64 {
@@ -6696,7 +7242,7 @@ type GroupMember struct {
 func (x *GroupMember) Reset() {
 	*x = GroupMember{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_cosmos_group_v1beta1_types_proto_msgTypes[4]
+		mi := &file_cosmos_group_v1beta1_types_proto_msgTypes[5]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -6710,7 +7256,7 @@ func (*GroupMember) ProtoMessage() {}
 
 // Deprecated: Use GroupMember.ProtoReflect.Descriptor instead.
 func (*GroupMember) Descriptor() ([]byte, []int) {
-	return file_cosmos_group_v1beta1_types_proto_rawDescGZIP(), []int{4}
+	return file_cosmos_group_v1beta1_types_proto_rawDescGZIP(), []int{5}
 }
 
 func (x *GroupMember) GetGroupId() uint64 {
@@ -6753,7 +7299,7 @@ type GroupPolicyInfo struct {
 func (x *GroupPolicyInfo) Reset() {
 	*x = GroupPolicyInfo{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_cosmos_group_v1beta1_types_proto_msgTypes[5]
+		mi := &file_cosmos_group_v1beta1_types_proto_msgTypes[6]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -6767,7 +7313,7 @@ func (*GroupPolicyInfo) ProtoMessage() {}
 
 // Deprecated: Use GroupPolicyInfo.ProtoReflect.Descriptor instead.
 func (*GroupPolicyInfo) Descriptor() ([]byte, []int) {
-	return file_cosmos_group_v1beta1_types_proto_rawDescGZIP(), []int{5}
+	return file_cosmos_group_v1beta1_types_proto_rawDescGZIP(), []int{6}
 }
 
 func (x *GroupPolicyInfo) GetAddress() string {
@@ -6864,7 +7410,7 @@ type Proposal struct {
 func (x *Proposal) Reset() {
 	*x = Proposal{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_cosmos_group_v1beta1_types_proto_msgTypes[6]
+		mi := &file_cosmos_group_v1beta1_types_proto_msgTypes[7]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -6878,7 +7424,7 @@ func (*Proposal) ProtoMessage() {}
 
 // Deprecated: Use Proposal.ProtoReflect.Descriptor instead.
 func (*Proposal) Descriptor() ([]byte, []int) {
-	return file_cosmos_group_v1beta1_types_proto_rawDescGZIP(), []int{6}
+	return file_cosmos_group_v1beta1_types_proto_rawDescGZIP(), []int{7}
 }
 
 func (x *Proposal) GetProposalId() uint64 {
@@ -6991,7 +7537,7 @@ type Tally struct {
 func (x *Tally) Reset() {
 	*x = Tally{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_cosmos_group_v1beta1_types_proto_msgTypes[7]
+		mi := &file_cosmos_group_v1beta1_types_proto_msgTypes[8]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -7005,7 +7551,7 @@ func (*Tally) ProtoMessage() {}
 
 // Deprecated: Use Tally.ProtoReflect.Descriptor instead.
 func (*Tally) Descriptor() ([]byte, []int) {
-	return file_cosmos_group_v1beta1_types_proto_rawDescGZIP(), []int{7}
+	return file_cosmos_group_v1beta1_types_proto_rawDescGZIP(), []int{8}
 }
 
 func (x *Tally) GetYesCount() string {
@@ -7057,7 +7603,7 @@ type Vote struct {
 func (x *Vote) Reset() {
 	*x = Vote{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_cosmos_group_v1beta1_types_proto_msgTypes[8]
+		mi := &file_cosmos_group_v1beta1_types_proto_msgTypes[9]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -7071,7 +7617,7 @@ func (*Vote) ProtoMessage() {}
 
 // Deprecated: Use Vote.ProtoReflect.Descriptor instead.
 func (*Vote) Descriptor() ([]byte, []int) {
-	return file_cosmos_group_v1beta1_types_proto_rawDescGZIP(), []int{8}
+	return file_cosmos_group_v1beta1_types_proto_rawDescGZIP(), []int{9}
 }
 
 func (x *Vote) GetProposalId() uint64 {
@@ -7149,6 +7695,15 @@ var file_cosmos_group_v1beta1_types_proto_rawDesc = []byte{
 	0x44, 0x75, 0x72, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x42, 0x08, 0xc8, 0xde, 0x1f, 0x00, 0x98, 0xdf,
 	0x1f, 0x01, 0x52, 0x07, 0x74, 0x69, 0x6d, 0x65, 0x6f, 0x75, 0x74, 0x3a, 0x12, 0xca, 0xb4, 0x2d,
 	0x0e, 0x44, 0x65, 0x63, 0x69, 0x73, 0x69, 0x6f, 0x6e, 0x50, 0x6f, 0x6c, 0x69, 0x63, 0x79, 0x22,
+	0x8d, 0x01, 0x0a, 0x18, 0x50, 0x65, 0x72, 0x63, 0x65, 0x6e, 0x74, 0x61, 0x67, 0x65, 0x44, 0x65,
+	0x63, 0x69, 0x73, 0x69, 0x6f, 0x6e, 0x50, 0x6f, 0x6c, 0x69, 0x63, 0x79, 0x12, 0x1e, 0x0a, 0x0a,
+	0x70, 0x65, 0x72, 0x63, 0x65, 0x6e, 0x74, 0x61, 0x67, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09,
+	0x52, 0x0a, 0x70, 0x65, 0x72, 0x63, 0x65, 0x6e, 0x74, 0x61, 0x67, 0x65, 0x12, 0x3d, 0x0a, 0x07,
+	0x74, 0x69, 0x6d, 0x65, 0x6f, 0x75, 0x74, 0x18, 0x02, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x19, 0x2e,
+	0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2e,
+	0x44, 0x75, 0x72, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x42, 0x08, 0xc8, 0xde, 0x1f, 0x00, 0x98, 0xdf,
+	0x1f, 0x01, 0x52, 0x07, 0x74, 0x69, 0x6d, 0x65, 0x6f, 0x75, 0x74, 0x3a, 0x12, 0xca, 0xb4, 0x2d,
+	0x0e, 0x44, 0x65, 0x63, 0x69, 0x73, 0x69, 0x6f, 0x6e, 0x50, 0x6f, 0x6c, 0x69, 0x63, 0x79, 0x22,
 	0xf4, 0x01, 0x0a, 0x09, 0x47, 0x72, 0x6f, 0x75, 0x70, 0x49, 0x6e, 0x66, 0x6f, 0x12, 0x19, 0x0a,
 	0x08, 0x67, 0x72, 0x6f, 0x75, 0x70, 0x5f, 0x69, 0x64, 0x18, 0x01, 0x20, 0x01, 0x28, 0x04, 0x52,
 	0x07, 0x67, 0x72, 0x6f, 0x75, 0x70, 0x49, 0x64, 0x12, 0x2e, 0x0a, 0x05, 0x61, 0x64, 0x6d, 0x69,
@@ -7347,47 +7902,49 @@ func file_cosmos_group_v1beta1_types_proto_rawDescGZIP() []byte {
 }
 
 var file_cosmos_group_v1beta1_types_proto_enumTypes = make([]protoimpl.EnumInfo, 4)
-var file_cosmos_group_v1beta1_types_proto_msgTypes = make([]protoimpl.MessageInfo, 9)
+var file_cosmos_group_v1beta1_types_proto_msgTypes = make([]protoimpl.MessageInfo, 10)
 var file_cosmos_group_v1beta1_types_proto_goTypes = []interface{}{
-	(Choice)(0),                     // 0: cosmos.group.v1beta1.Choice
-	(Proposal_Status)(0),            // 1: cosmos.group.v1beta1.Proposal.Status
-	(Proposal_Result)(0),            // 2: cosmos.group.v1beta1.Proposal.Result
-	(Proposal_ExecutorResult)(0),    // 3: cosmos.group.v1beta1.Proposal.ExecutorResult
-	(*Member)(nil),                  // 4: cosmos.group.v1beta1.Member
-	(*Members)(nil),                 // 5: cosmos.group.v1beta1.Members
-	(*ThresholdDecisionPolicy)(nil), // 6: cosmos.group.v1beta1.ThresholdDecisionPolicy
-	(*GroupInfo)(nil),               // 7: cosmos.group.v1beta1.GroupInfo
-	(*GroupMember)(nil),             // 8: cosmos.group.v1beta1.GroupMember
-	(*GroupPolicyInfo)(nil),         // 9: cosmos.group.v1beta1.GroupPolicyInfo
-	(*Proposal)(nil),                // 10: cosmos.group.v1beta1.Proposal
-	(*Tally)(nil),                   // 11: cosmos.group.v1beta1.Tally
-	(*Vote)(nil),                    // 12: cosmos.group.v1beta1.Vote
-	(*timestamppb.Timestamp)(nil),   // 13: google.protobuf.Timestamp
-	(*durationpb.Duration)(nil),     // 14: google.protobuf.Duration
-	(*anypb.Any)(nil),               // 15: google.protobuf.Any
+	(Choice)(0),                      // 0: cosmos.group.v1beta1.Choice
+	(Proposal_Status)(0),             // 1: cosmos.group.v1beta1.Proposal.Status
+	(Proposal_Result)(0),             // 2: cosmos.group.v1beta1.Proposal.Result
+	(Proposal_ExecutorResult)(0),     // 3: cosmos.group.v1beta1.Proposal.ExecutorResult
+	(*Member)(nil),                   // 4: cosmos.group.v1beta1.Member
+	(*Members)(nil),                  // 5: cosmos.group.v1beta1.Members
+	(*ThresholdDecisionPolicy)(nil),  // 6: cosmos.group.v1beta1.ThresholdDecisionPolicy
+	(*PercentageDecisionPolicy)(nil), // 7: cosmos.group.v1beta1.PercentageDecisionPolicy
+	(*GroupInfo)(nil),                // 8: cosmos.group.v1beta1.GroupInfo
+	(*GroupMember)(nil),              // 9: cosmos.group.v1beta1.GroupMember
+	(*GroupPolicyInfo)(nil),          // 10: cosmos.group.v1beta1.GroupPolicyInfo
+	(*Proposal)(nil),                 // 11: cosmos.group.v1beta1.Proposal
+	(*Tally)(nil),                    // 12: cosmos.group.v1beta1.Tally
+	(*Vote)(nil),                     // 13: cosmos.group.v1beta1.Vote
+	(*timestamppb.Timestamp)(nil),    // 14: google.protobuf.Timestamp
+	(*durationpb.Duration)(nil),      // 15: google.protobuf.Duration
+	(*anypb.Any)(nil),                // 16: google.protobuf.Any
 }
 var file_cosmos_group_v1beta1_types_proto_depIdxs = []int32{
-	13, // 0: cosmos.group.v1beta1.Member.added_at:type_name -> google.protobuf.Timestamp
+	14, // 0: cosmos.group.v1beta1.Member.added_at:type_name -> google.protobuf.Timestamp
 	4,  // 1: cosmos.group.v1beta1.Members.members:type_name -> cosmos.group.v1beta1.Member
-	14, // 2: cosmos.group.v1beta1.ThresholdDecisionPolicy.timeout:type_name -> google.protobuf.Duration
-	13, // 3: cosmos.group.v1beta1.GroupInfo.created_at:type_name -> google.protobuf.Timestamp
-	4,  // 4: cosmos.group.v1beta1.GroupMember.member:type_name -> cosmos.group.v1beta1.Member
-	15, // 5: cosmos.group.v1beta1.GroupPolicyInfo.decision_policy:type_name -> google.protobuf.Any
-	13, // 6: cosmos.group.v1beta1.GroupPolicyInfo.created_at:type_name -> google.protobuf.Timestamp
-	13, // 7: cosmos.group.v1beta1.Proposal.submitted_at:type_name -> google.protobuf.Timestamp
-	1,  // 8: cosmos.group.v1beta1.Proposal.status:type_name -> cosmos.group.v1beta1.Proposal.Status
-	2,  // 9: cosmos.group.v1beta1.Proposal.result:type_name -> cosmos.group.v1beta1.Proposal.Result
-	11, // 10: cosmos.group.v1beta1.Proposal.vote_state:type_name -> cosmos.group.v1beta1.Tally
-	13, // 11: cosmos.group.v1beta1.Proposal.timeout:type_name -> google.protobuf.Timestamp
-	3,  // 12: cosmos.group.v1beta1.Proposal.executor_result:type_name -> cosmos.group.v1beta1.Proposal.ExecutorResult
-	15, // 13: cosmos.group.v1beta1.Proposal.msgs:type_name -> google.protobuf.Any
-	0,  // 14: cosmos.group.v1beta1.Vote.choice:type_name -> cosmos.group.v1beta1.Choice
-	13, // 15: cosmos.group.v1beta1.Vote.submitted_at:type_name -> google.protobuf.Timestamp
-	16, // [16:16] is the sub-list for method output_type
-	16, // [16:16] is the sub-list for method input_type
-	16, // [16:16] is the sub-list for extension type_name
-	16, // [16:16] is the sub-list for extension extendee
-	0,  // [0:16] is the sub-list for field type_name
+	15, // 2: cosmos.group.v1beta1.ThresholdDecisionPolicy.timeout:type_name -> google.protobuf.Duration
+	15, // 3: cosmos.group.v1beta1.PercentageDecisionPolicy.timeout:type_name -> google.protobuf.Duration
+	14, // 4: cosmos.group.v1beta1.GroupInfo.created_at:type_name -> google.protobuf.Timestamp
+	4,  // 5: cosmos.group.v1beta1.GroupMember.member:type_name -> cosmos.group.v1beta1.Member
+	16, // 6: cosmos.group.v1beta1.GroupPolicyInfo.decision_policy:type_name -> google.protobuf.Any
+	14, // 7: cosmos.group.v1beta1.GroupPolicyInfo.created_at:type_name -> google.protobuf.Timestamp
+	14, // 8: cosmos.group.v1beta1.Proposal.submitted_at:type_name -> google.protobuf.Timestamp
+	1,  // 9: cosmos.group.v1beta1.Proposal.status:type_name -> cosmos.group.v1beta1.Proposal.Status
+	2,  // 10: cosmos.group.v1beta1.Proposal.result:type_name -> cosmos.group.v1beta1.Proposal.Result
+	12, // 11: cosmos.group.v1beta1.Proposal.vote_state:type_name -> cosmos.group.v1beta1.Tally
+	14, // 12: cosmos.group.v1beta1.Proposal.timeout:type_name -> google.protobuf.Timestamp
+	3,  // 13: cosmos.group.v1beta1.Proposal.executor_result:type_name -> cosmos.group.v1beta1.Proposal.ExecutorResult
+	16, // 14: cosmos.group.v1beta1.Proposal.msgs:type_name -> google.protobuf.Any
+	0,  // 15: cosmos.group.v1beta1.Vote.choice:type_name -> cosmos.group.v1beta1.Choice
+	14, // 16: cosmos.group.v1beta1.Vote.submitted_at:type_name -> google.protobuf.Timestamp
+	17, // [17:17] is the sub-list for method output_type
+	17, // [17:17] is the sub-list for method input_type
+	17, // [17:17] is the sub-list for extension type_name
+	17, // [17:17] is the sub-list for extension extendee
+	0,  // [0:17] is the sub-list for field type_name
 }
 
 func init() { file_cosmos_group_v1beta1_types_proto_init() }
@@ -7433,7 +7990,7 @@ func file_cosmos_group_v1beta1_types_proto_init() {
 			}
 		}
 		file_cosmos_group_v1beta1_types_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*GroupInfo); i {
+			switch v := v.(*PercentageDecisionPolicy); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7445,7 +8002,7 @@ func file_cosmos_group_v1beta1_types_proto_init() {
 			}
 		}
 		file_cosmos_group_v1beta1_types_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*GroupMember); i {
+			switch v := v.(*GroupInfo); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7457,7 +8014,7 @@ func file_cosmos_group_v1beta1_types_proto_init() {
 			}
 		}
 		file_cosmos_group_v1beta1_types_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*GroupPolicyInfo); i {
+			switch v := v.(*GroupMember); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7469,7 +8026,7 @@ func file_cosmos_group_v1beta1_types_proto_init() {
 			}
 		}
 		file_cosmos_group_v1beta1_types_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*Proposal); i {
+			switch v := v.(*GroupPolicyInfo); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7481,7 +8038,7 @@ func file_cosmos_group_v1beta1_types_proto_init() {
 			}
 		}
 		file_cosmos_group_v1beta1_types_proto_msgTypes[7].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*Tally); i {
+			switch v := v.(*Proposal); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -7493,6 +8050,18 @@ func file_cosmos_group_v1beta1_types_proto_init() {
 			}
 		}
 		file_cosmos_group_v1beta1_types_proto_msgTypes[8].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Tally); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_cosmos_group_v1beta1_types_proto_msgTypes[9].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*Vote); i {
 			case 0:
 				return &v.state
@@ -7511,7 +8080,7 @@ func file_cosmos_group_v1beta1_types_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_cosmos_group_v1beta1_types_proto_rawDesc,
 			NumEnums:      4,
-			NumMessages:   9,
+			NumMessages:   10,
 			NumExtensions: 0,
 			NumServices:   0,
 		},

proto/cosmos/group/v1beta1/types.proto

@@ -46,6 +46,18 @@ message ThresholdDecisionPolicy {
   google.protobuf.Duration timeout = 2 [(gogoproto.stdduration) = true, (gogoproto.nullable) = false];
 }
 
+// PercentageDecisionPolicy implements the DecisionPolicy interface
+message PercentageDecisionPolicy {
+  option (cosmos_proto.implements_interface) = "DecisionPolicy";
+
+  // percentage is the minimum percentage the weighted sum of yes votes must meet for a proposal to succeed.
+  string percentage = 1;
+
+  // timeout is the duration from submission of a proposal to the end of voting period
+  // Within these times votes and exec messages can be submitted.
+  google.protobuf.Duration timeout = 2 [(gogoproto.stdduration) = true, (gogoproto.nullable) = false];
+}
+
 // Choice defines available types of choices for voting.
 enum Choice {
 

x/group/client/cli/tx.go

@@ -299,6 +299,9 @@ Note, the '--from' flag is ignored as it is implied from [admin].
 Example:
 $ %s tx group create-group-policy [admin] [group-id] [metadata] \
 '{"@type":"/cosmos.group.v1beta1.ThresholdDecisionPolicy", "threshold":"1", "timeout":"1s"}'
+
+Here, we can use percentage decision policy when needed, where 0 < percentage <= 1.
+Ex: '{"@type":"/cosmos.group.v1beta1.PercentageDecisionPolicy", "percentage":"0.5", "timeout":"1s"}'
 `,
 				version.AppName,
 			),

x/group/client/testutil/query.go

@@ -372,6 +372,7 @@ func (s *IntegrationTestSuite) TestQueryGroupPoliciesByGroup() {
 				s.groupPolicies[2],
 				s.groupPolicies[3],
 				s.groupPolicies[4],
+				s.groupPolicies[5],
 			},
 		},
 	}
@@ -443,6 +444,7 @@ func (s *IntegrationTestSuite) TestQueryGroupPoliciesByAdmin() {
 				s.groupPolicies[2],
 				s.groupPolicies[3],
 				s.groupPolicies[4],
+				s.groupPolicies[5],
 			},
 		},
 	}

x/group/client/testutil/tx.go

@@ -129,10 +129,29 @@ func (s *IntegrationTestSuite) SetupSuite() {
 		out, err = cli.ExecTestCLICmd(val.ClientCtx, client.QueryGroupPoliciesByGroupCmd(), []string{"1", fmt.Sprintf("--%s=json", tmcli.OutputFlag)})
 		s.Require().NoError(err, out.String())
 	}
+	percentage := 0.5
+	// create group policy with percentage decision policy
+	out, err = cli.ExecTestCLICmd(val.ClientCtx, client.MsgCreateGroupPolicyCmd(),
+		append(
+			[]string{
+				val.Address.String(),
+				"1",
+				validMetadata,
+				fmt.Sprintf("{\"@type\":\"/cosmos.group.v1beta1.PercentageDecisionPolicy\", \"percentage\":\"%f\", \"timeout\":\"30000s\"}", percentage),
+			},
+			commonFlags...,
+		),
+	)
+	s.Require().NoError(err, out.String())
+	s.Require().NoError(val.ClientCtx.Codec.UnmarshalJSON(out.Bytes(), &txResp), out.String())
+	s.Require().Equal(uint32(0), txResp.Code, out.String())
+
+	out, err = cli.ExecTestCLICmd(val.ClientCtx, client.QueryGroupPoliciesByGroupCmd(), []string{"1", fmt.Sprintf("--%s=json", tmcli.OutputFlag)})
+	s.Require().NoError(err, out.String())
 
 	var res group.QueryGroupPoliciesByGroupResponse
 	s.Require().NoError(val.ClientCtx.Codec.UnmarshalJSON(out.Bytes(), &res))
-	s.Require().Equal(len(res.GroupPolicies), 5)
+	s.Require().Equal(len(res.GroupPolicies), 6)
 	s.groupPolicies = res.GroupPolicies
 
 	// create a proposal
@@ -711,6 +730,22 @@ func (s *IntegrationTestSuite) TestTxCreateGroupPolicy() {
 			&sdk.TxResponse{},
 			0,
 		},
+		{
+			"correct data with percentage decision policy",
+			append(
+				[]string{
+					val.Address.String(),
+					fmt.Sprintf("%v", groupID),
+					validMetadata,
+					"{\"@type\":\"/cosmos.group.v1beta1.PercentageDecisionPolicy\", \"percentage\":\"0.5\", \"timeout\":\"1s\"}",
+				},
+				commonFlags...,
+			),
+			false,
+			"",
+			&sdk.TxResponse{},
+			0,
+		},
 		{
 			"with amino-json",
 			append(
@@ -776,6 +811,38 @@ func (s *IntegrationTestSuite) TestTxCreateGroupPolicy() {
 			&sdk.TxResponse{},
 			0,
 		},
+		{
+			"invalid percentage decision policy with negative value",
+			append(
+				[]string{
+					val.Address.String(),
+					fmt.Sprintf("%v", groupID),
+					validMetadata,
+					"{\"@type\":\"/cosmos.group.v1beta1.PercentageDecisionPolicy\", \"percentage\":\"-0.5\", \"timeout\":\"1s\"}",
+				},
+				commonFlags...,
+			),
+			true,
+			"expected a positive decimal",
+			&sdk.TxResponse{},
+			0,
+		},
+		{
+			"invalid percentage decision policy with value greater than 1",
+			append(
+				[]string{
+					val.Address.String(),
+					fmt.Sprintf("%v", groupID),
+					validMetadata,
+					"{\"@type\":\"/cosmos.group.v1beta1.PercentageDecisionPolicy\", \"percentage\":\"2\", \"timeout\":\"1s\"}",
+				},
+				commonFlags...,
+			),
+			true,
+			"percentage must be > 0 and <= 1",
+			&sdk.TxResponse{},
+			0,
+		},
 	}
 
 	for _, tc := range testCases {
@@ -936,6 +1003,21 @@ func (s *IntegrationTestSuite) TestTxUpdateGroupPolicyDecisionPolicy() {
 			&sdk.TxResponse{},
 			0,
 		},
+		{
+			"correct data with percentage decision policy",
+			append(
+				[]string{
+					groupPolicy.Admin,
+					groupPolicy.Address,
+					"{\"@type\":\"/cosmos.group.v1beta1.PercentageDecisionPolicy\", \"percentage\":\"0.5\", \"timeout\":\"40000s\"}",
+				},
+				commonFlags...,
+			),
+			false,
+			"",
+			&sdk.TxResponse{},
+			0,
+		},
 		{
 			"with amino-json",
 			append(
@@ -982,6 +1064,36 @@ func (s *IntegrationTestSuite) TestTxUpdateGroupPolicyDecisionPolicy() {
 			&sdk.TxResponse{},
 			0,
 		},
+		{
+			"invalid percentage decision policy with negative value",
+			append(
+				[]string{
+					groupPolicy.Admin,
+					groupPolicy.Address,
+					"{\"@type\":\"/cosmos.group.v1beta1.PercentageDecisionPolicy\", \"percentage\":\"-0.5\", \"timeout\":\"1s\"}",
+				},
+				commonFlags...,
+			),
+			true,
+			"expected a positive decimal",
+			&sdk.TxResponse{},
+			0,
+		},
+		{
+			"invalid percentage decision policy with value greater than 1",
+			append(
+				[]string{
+					groupPolicy.Admin,
+					groupPolicy.Address,
+					"{\"@type\":\"/cosmos.group.v1beta1.PercentageDecisionPolicy\", \"percentage\":\"2\", \"timeout\":\"40000s\"}",
+				},
+				commonFlags...,
+			),
+			true,
+			"percentage must be > 0 and <= 1",
+			&sdk.TxResponse{},
+			0,
+		},
 	}
 
 	for _, tc := range testCases {

x/group/codec.go

@@ -13,6 +13,7 @@ import (
 func RegisterLegacyAminoCodec(cdc *codec.LegacyAmino) {
 	cdc.RegisterInterface((*DecisionPolicy)(nil), nil)
 	cdc.RegisterConcrete(&ThresholdDecisionPolicy{}, "cosmos-sdk/ThresholdDecisionPolicy", nil)
+	cdc.RegisterConcrete(&PercentageDecisionPolicy{}, "cosmos-sdk/PercentageDecisionPolicy", nil)
 	cdc.RegisterConcrete(&MsgCreateGroup{}, "cosmos-sdk/MsgCreateGroup", nil)
 	cdc.RegisterConcrete(&MsgUpdateGroupMembers{}, "cosmos-sdk/MsgUpdateGroupMembers", nil)
 	cdc.RegisterConcrete(&MsgUpdateGroupAdmin{}, "cosmos-sdk/MsgUpdateGroupAdmin", nil)
@@ -49,6 +50,7 @@ func RegisterInterfaces(registry cdctypes.InterfaceRegistry) {
 		"cosmos.group.v1beta1.DecisionPolicy",
 		(*DecisionPolicy)(nil),
 		&ThresholdDecisionPolicy{},
+		&PercentageDecisionPolicy{},
 	)
 }
 

x/group/internal/math/dec.go

@@ -101,6 +101,21 @@ func Add(x Dec, y Dec) (Dec, error) {
 	return x.Add(y)
 }
 
+var dec128Context = apd.Context{
+	Precision:   34,
+	MaxExponent: apd.MaxExponent,
+	MinExponent: apd.MinExponent,
+	Traps:       apd.DefaultTraps,
+}
+
+// Quo returns a new Dec with value `x/y` (formatted as decimal128, 34 digit precision) without mutating any
+// argument and error if there is an overflow.
+func (x Dec) Quo(y Dec) (Dec, error) {
+	var z Dec
+	_, err := dec128Context.Quo(&z.dec, &x.dec, &y.dec)
+	return z, sdkerrors.Wrap(err, "decimal quotient error")
+}
+
 func (x Dec) IsZero() bool {
 	return x.dec.IsZero()
 }

x/group/internal/math/dec_test.go

@@ -75,6 +75,10 @@ func TestDec(t *testing.T) {
 	require.NoError(t, err)
 	require.True(t, res.IsEqual(minusFivePointZero))
 
+	res, err = four.Quo(two)
+	require.NoError(t, err)
+	require.True(t, res.IsEqual(two))
+
 	require.False(t, zero.IsNegative())
 	require.False(t, one.IsNegative())
 	require.True(t, minusOne.IsNegative())

x/group/keeper/keeper_test.go

@@ -719,9 +719,10 @@ func (s *TestSuite) TestCreateGroupPolicy() {
 	myGroupID := groupRes.GroupId
 
 	specs := map[string]struct {
-		req    *group.MsgCreateGroupPolicy
-		policy group.DecisionPolicy
-		expErr bool
+		req       *group.MsgCreateGroupPolicy
+		policy    group.DecisionPolicy
+		expErr    bool
+		expErrMsg string
 	}{
 		"all good": {
 			req: &group.MsgCreateGroupPolicy{
@@ -734,6 +735,17 @@ func (s *TestSuite) TestCreateGroupPolicy() {
 				time.Second,
 			),
 		},
+		"all good with percentage decision policy": {
+			req: &group.MsgCreateGroupPolicy{
+				Admin:    addr1.String(),
+				Metadata: nil,
+				GroupId:  myGroupID,
+			},
+			policy: group.NewPercentageDecisionPolicy(
+				"0.5",
+				time.Second,
+			),
+		},
 		"decision policy threshold > total group weight": {
 			req: &group.MsgCreateGroupPolicy{
 				Admin:    addr1.String(),
@@ -755,7 +767,8 @@ func (s *TestSuite) TestCreateGroupPolicy() {
 				"1",
 				time.Second,
 			),
-			expErr: true,
+			expErr:    true,
+			expErrMsg: "not found",
 		},
 		"admin not group admin": {
 			req: &group.MsgCreateGroupPolicy{
@@ -767,7 +780,8 @@ func (s *TestSuite) TestCreateGroupPolicy() {
 				"1",
 				time.Second,
 			),
-			expErr: true,
+			expErr:    true,
+			expErrMsg: "not group admin",
 		},
 		"metadata too long": {
 			req: &group.MsgCreateGroupPolicy{
@@ -779,7 +793,34 @@ func (s *TestSuite) TestCreateGroupPolicy() {
 				"1",
 				time.Second,
 			),
-			expErr: true,
+			expErr:    true,
+			expErrMsg: "limit exceeded",
+		},
+		"percentage decision policy with negative value": {
+			req: &group.MsgCreateGroupPolicy{
+				Admin:    addr1.String(),
+				Metadata: nil,
+				GroupId:  myGroupID,
+			},
+			policy: group.NewPercentageDecisionPolicy(
+				"-0.5",
+				time.Second,
+			),
+			expErr:    true,
+			expErrMsg: "expected a positive decimal",
+		},
+		"percentage decision policy with value greater than 1": {
+			req: &group.MsgCreateGroupPolicy{
+				Admin:    addr1.String(),
+				Metadata: nil,
+				GroupId:  myGroupID,
+			},
+			policy: group.NewPercentageDecisionPolicy(
+				"2",
+				time.Second,
+			),
+			expErr:    true,
+			expErrMsg: "percentage must be > 0 and <= 1",
 		},
 	}
 	for msg, spec := range specs {
@@ -791,6 +832,7 @@ func (s *TestSuite) TestCreateGroupPolicy() {
 			res, err := s.keeper.CreateGroupPolicy(s.ctx, spec.req)
 			if spec.expErr {
 				s.Require().Error(err)
+				s.Require().Contains(err.Error(), spec.expErrMsg)
 				return
 			}
 			s.Require().NoError(err)
@@ -806,7 +848,12 @@ func (s *TestSuite) TestCreateGroupPolicy() {
 			s.Assert().Equal(spec.req.Admin, groupPolicy.Admin)
 			s.Assert().Equal(spec.req.Metadata, groupPolicy.Metadata)
 			s.Assert().Equal(uint64(1), groupPolicy.Version)
-			s.Assert().Equal(spec.policy.(*group.ThresholdDecisionPolicy), groupPolicy.GetDecisionPolicy())
+			percentageDecisionPolicy, ok := spec.policy.(*group.PercentageDecisionPolicy)
+			if ok {
+				s.Assert().Equal(percentageDecisionPolicy, groupPolicy.GetDecisionPolicy())
+			} else {
+				s.Assert().Equal(spec.policy.(*group.ThresholdDecisionPolicy), groupPolicy.GetDecisionPolicy())
+			}
 		})
 	}
 }
@@ -1029,6 +1076,26 @@ func (s *TestSuite) TestUpdateGroupPolicyDecisionPolicy() {
 			},
 			expErr: false,
 		},
+		"correct data with percentage decision policy": {
+			req: &group.MsgUpdateGroupPolicyDecisionPolicy{
+				Admin:   admin.String(),
+				Address: groupPolicyAddr,
+			},
+			policy: group.NewPercentageDecisionPolicy(
+				"0.5",
+				time.Duration(2)*time.Second,
+			),
+			expGroupPolicy: &group.GroupPolicyInfo{
+				Admin:          admin.String(),
+				Address:        groupPolicyAddr,
+				GroupId:        myGroupID,
+				Metadata:       nil,
+				Version:        3,
+				DecisionPolicy: nil,
+				CreatedAt:      s.blockTime,
+			},
+			expErr: false,
+		},
 	}
 	for msg, spec := range specs {
 		spec := spec
@@ -1076,9 +1143,13 @@ func (s *TestSuite) TestGroupPoliciesByAdminOrGroup() {
 			"10",
 			time.Second,
 		),
+		group.NewPercentageDecisionPolicy(
+			"0.5",
+			time.Second,
+		),
 	}
 
-	count := 2
+	count := 3
 	expectAccs := make([]*group.GroupPolicyInfo, count)
 	for i := range expectAccs {
 		req := &group.MsgCreateGroupPolicy{

x/group/msgs_test.go

@@ -14,6 +14,9 @@ var (
 	admin   = sdk.AccAddress("admin")
 	member1 = sdk.AccAddress("member1")
 	member2 = sdk.AccAddress("member2")
+	member3 = sdk.AccAddress("member3")
+	member4 = sdk.AccAddress("member4")
+	member5 = sdk.AccAddress("member5")
 )
 
 func TestMsgCreateGroup(t *testing.T) {
@@ -403,6 +406,50 @@ func TestMsgCreateGroupPolicy(t *testing.T) {
 			false,
 			"",
 		},
+		{
+			"invalid percentage decision policy with zero value",
+			func() *group.MsgCreateGroupPolicy {
+				percentagePolicy := group.NewPercentageDecisionPolicy("0", time.Second)
+				req, err := group.NewMsgCreateGroupPolicy(admin, 1, []byte("metadata"), percentagePolicy)
+				require.NoError(t, err)
+				return req
+			},
+			true,
+			"expected a positive decimal",
+		},
+		{
+			"invalid percentage decision policy with negative value",
+			func() *group.MsgCreateGroupPolicy {
+				percentagePolicy := group.NewPercentageDecisionPolicy("-0.2", time.Second)
+				req, err := group.NewMsgCreateGroupPolicy(admin, 1, []byte("metadata"), percentagePolicy)
+				require.NoError(t, err)
+				return req
+			},
+			true,
+			"expected a positive decimal",
+		},
+		{
+			"invalid percentage decision policy with value greater than 1",
+			func() *group.MsgCreateGroupPolicy {
+				percentagePolicy := group.NewPercentageDecisionPolicy("2", time.Second)
+				req, err := group.NewMsgCreateGroupPolicy(admin, 1, []byte("metadata"), percentagePolicy)
+				require.NoError(t, err)
+				return req
+			},
+			true,
+			"percentage must be > 0 and <= 1",
+		},
+		{
+			"valid test case with percentage decision policy",
+			func() *group.MsgCreateGroupPolicy {
+				percentagePolicy := group.NewPercentageDecisionPolicy("0.5", time.Second)
+				req, err := group.NewMsgCreateGroupPolicy(admin, 1, []byte("metadata"), percentagePolicy)
+				require.NoError(t, err)
+				return req
+			},
+			false,
+			"",
+		},
 	}
 
 	for _, tc := range testCases {
@@ -429,6 +476,18 @@ func TestMsgUpdateGroupPolicyDecisionPolicy(t *testing.T) {
 	msg2, err := group.NewMsgUpdateGroupPolicyDecisionPolicyRequest(admin, member2, invalidPolicy)
 	require.NoError(t, err)
 
+	validPercentagePolicy := group.NewPercentageDecisionPolicy("0.7", time.Second)
+	msg3, err := group.NewMsgUpdateGroupPolicyDecisionPolicyRequest(admin, member3, validPercentagePolicy)
+	require.NoError(t, err)
+
+	invalidPercentagePolicy := group.NewPercentageDecisionPolicy("-0.1", time.Second)
+	msg4, err := group.NewMsgUpdateGroupPolicyDecisionPolicyRequest(admin, member4, invalidPercentagePolicy)
+	require.NoError(t, err)
+
+	invalidPercentagePolicy2 := group.NewPercentageDecisionPolicy("2", time.Second)
+	msg5, err := group.NewMsgUpdateGroupPolicyDecisionPolicyRequest(admin, member5, invalidPercentagePolicy2)
+	require.NoError(t, err)
+
 	testCases := []struct {
 		name   string
 		msg    *group.MsgUpdateGroupPolicyDecisionPolicy
@@ -468,11 +527,29 @@ func TestMsgUpdateGroupPolicyDecisionPolicy(t *testing.T) {
 			"decision policy: threshold: expected a positive decimal",
 		},
 		{
-			"invalid decision policy",
+			"valid decision policy",
 			msg1,
 			false,
 			"",
 		},
+		{
+			"valid percentage decision policy",
+			msg3,
+			false,
+			"",
+		},
+		{
+			"invalid percentage decision policy with negative value",
+			msg4,
+			true,
+			"decision policy: percentage threshold: expected a positive decimal",
+		},
+		{
+			"invalid percentage decision policy with value greater than 1",
+			msg5,
+			true,
+			"decision policy: percentage must be > 0 and <= 1",
+		},
 	}
 
 	for _, tc := range testCases {

x/group/types.go

@@ -5,7 +5,6 @@ import (
 	"time"
 
 	proto "github.com/gogo/protobuf/proto"
-	"github.com/gogo/protobuf/types"
 
 	"github.com/cosmos/cosmos-sdk/codec"
 	codectypes "github.com/cosmos/cosmos-sdk/codec/types"
@@ -54,11 +53,7 @@ func (p ThresholdDecisionPolicy) ValidateBasic() error {
 
 // Allow allows a proposal to pass when the tally of yes votes equals or exceeds the threshold before the timeout.
 func (p ThresholdDecisionPolicy) Allow(tally Tally, totalPower string, votingDuration time.Duration) (DecisionPolicyResult, error) {
-	pTimeout := types.DurationProto(p.Timeout)
-	timeout, err := types.DurationFromProto(pTimeout)
-	if err != nil {
-		return DecisionPolicyResult{}, err
-	}
+	timeout := p.Timeout
 	if timeout <= votingDuration {
 		return DecisionPolicyResult{Allow: false, Final: true}, nil
 	}
@@ -113,6 +108,85 @@ func (p *ThresholdDecisionPolicy) Validate(g GroupInfo) error {
 	return nil
 }
 
+// Implements DecisionPolicy Interface
+var _ DecisionPolicy = &PercentageDecisionPolicy{}
+
+// NewPercentageDecisionPolicy creates a new percentage DecisionPolicy
+func NewPercentageDecisionPolicy(percentage string, timeout time.Duration) DecisionPolicy {
+	return &PercentageDecisionPolicy{percentage, timeout}
+}
+
+func (p PercentageDecisionPolicy) ValidateBasic() error {
+	percentage, err := math.NewPositiveDecFromString(p.Percentage)
+	if err != nil {
+		return sdkerrors.Wrap(err, "percentage threshold")
+	}
+	if percentage.Cmp(math.NewDecFromInt64(1)) == 1 {
+		return sdkerrors.Wrap(errors.ErrInvalid, "percentage must be > 0 and <= 1")
+	}
+
+	timeout := p.Timeout
+	if timeout <= time.Nanosecond {
+		return sdkerrors.Wrap(errors.ErrInvalid, "timeout")
+	}
+	return nil
+}
+
+func (p *PercentageDecisionPolicy) Validate(g GroupInfo) error {
+	return nil
+}
+
+// Allow allows a proposal to pass when the tally of yes votes equals or exceeds the percentage threshold before the timeout.
+func (p PercentageDecisionPolicy) Allow(tally Tally, totalPower string, votingDuration time.Duration) (DecisionPolicyResult, error) {
+	timeout := p.Timeout
+	if timeout <= votingDuration {
+		return DecisionPolicyResult{Allow: false, Final: true}, nil
+	}
+
+	percentage, err := math.NewPositiveDecFromString(p.Percentage)
+	if err != nil {
+		return DecisionPolicyResult{}, err
+	}
+	yesCount, err := math.NewNonNegativeDecFromString(tally.YesCount)
+	if err != nil {
+		return DecisionPolicyResult{}, err
+	}
+	totalPowerDec, err := math.NewNonNegativeDecFromString(totalPower)
+	if err != nil {
+		return DecisionPolicyResult{}, err
+	}
+
+	yesPercentage, err := yesCount.Quo(totalPowerDec)
+	if err != nil {
+		return DecisionPolicyResult{}, err
+	}
+
+	if yesPercentage.Cmp(percentage) >= 0 {
+		return DecisionPolicyResult{Allow: true, Final: true}, nil
+	}
+
+	totalCounts, err := tally.TotalCounts()
+	if err != nil {
+		return DecisionPolicyResult{}, err
+	}
+	undecided, err := math.SubNonNegative(totalPowerDec, totalCounts)
+	if err != nil {
+		return DecisionPolicyResult{}, err
+	}
+	sum, err := yesCount.Add(undecided)
+	if err != nil {
+		return DecisionPolicyResult{}, err
+	}
+	sumPercentage, err := sum.Quo(totalPowerDec)
+	if err != nil {
+		return DecisionPolicyResult{}, err
+	}
+	if sumPercentage.Cmp(percentage) < 0 {
+		return DecisionPolicyResult{Allow: false, Final: true}, nil
+	}
+	return DecisionPolicyResult{Allow: false, Final: false}, nil
+}
+
 var _ orm.Validateable = GroupPolicyInfo{}
 
 // NewGroupPolicyInfo creates a new GroupPolicyInfo instance

x/group/types.pb.go

@@ -109,7 +109,7 @@ func (x Proposal_Status) String() string {
 }
 
 func (Proposal_Status) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_e091dfce5c49c8b6, []int{6, 0}
+	return fileDescriptor_e091dfce5c49c8b6, []int{7, 0}
 }
 
 // Result defines types of proposal results.
@@ -145,7 +145,7 @@ func (x Proposal_Result) String() string {
 }
 
 func (Proposal_Result) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_e091dfce5c49c8b6, []int{6, 1}
+	return fileDescriptor_e091dfce5c49c8b6, []int{7, 1}
 }
 
 // ExecutorResult defines types of proposal executor results.
@@ -181,7 +181,7 @@ func (x Proposal_ExecutorResult) String() string {
 }
 
 func (Proposal_ExecutorResult) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_e091dfce5c49c8b6, []int{6, 2}
+	return fileDescriptor_e091dfce5c49c8b6, []int{7, 2}
 }
 
 // Member represents a group member with an account address,
@@ -360,6 +360,62 @@ func (m *ThresholdDecisionPolicy) GetTimeout() time.Duration {
 	return 0
 }
 
+// PercentageDecisionPolicy implements the DecisionPolicy interface
+type PercentageDecisionPolicy struct {
+	// percentage is the minimum percentage the weighted sum of yes votes must meet for a proposal to succeed.
+	Percentage string `protobuf:"bytes,1,opt,name=percentage,proto3" json:"percentage,omitempty"`
+	// timeout is the duration from submission of a proposal to the end of voting period
+	// Within these times votes and exec messages can be submitted.
+	Timeout time.Duration `protobuf:"bytes,2,opt,name=timeout,proto3,stdduration" json:"timeout"`
+}
+
+func (m *PercentageDecisionPolicy) Reset()         { *m = PercentageDecisionPolicy{} }
+func (m *PercentageDecisionPolicy) String() string { return proto.CompactTextString(m) }
+func (*PercentageDecisionPolicy) ProtoMessage()    {}
+func (*PercentageDecisionPolicy) Descriptor() ([]byte, []int) {
+	return fileDescriptor_e091dfce5c49c8b6, []int{3}
+}
+func (m *PercentageDecisionPolicy) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *PercentageDecisionPolicy) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	if deterministic {
+		return xxx_messageInfo_PercentageDecisionPolicy.Marshal(b, m, deterministic)
+	} else {
+		b = b[:cap(b)]
+		n, err := m.MarshalToSizedBuffer(b)
+		if err != nil {
+			return nil, err
+		}
+		return b[:n], nil
+	}
+}
+func (m *PercentageDecisionPolicy) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_PercentageDecisionPolicy.Merge(m, src)
+}
+func (m *PercentageDecisionPolicy) XXX_Size() int {
+	return m.Size()
+}
+func (m *PercentageDecisionPolicy) XXX_DiscardUnknown() {
+	xxx_messageInfo_PercentageDecisionPolicy.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_PercentageDecisionPolicy proto.InternalMessageInfo
+
+func (m *PercentageDecisionPolicy) GetPercentage() string {
+	if m != nil {
+		return m.Percentage
+	}
+	return ""
+}
+
+func (m *PercentageDecisionPolicy) GetTimeout() time.Duration {
+	if m != nil {
+		return m.Timeout
+	}
+	return 0
+}
+
 // GroupInfo represents the high-level on-chain information for a group.
 type GroupInfo struct {
 	// group_id is the unique ID of the group.
@@ -383,7 +439,7 @@ func (m *GroupInfo) Reset()         { *m = GroupInfo{} }
 func (m *GroupInfo) String() string { return proto.CompactTextString(m) }
 func (*GroupInfo) ProtoMessage()    {}
 func (*GroupInfo) Descriptor() ([]byte, []int) {
-	return fileDescriptor_e091dfce5c49c8b6, []int{3}
+	return fileDescriptor_e091dfce5c49c8b6, []int{4}
 }
 func (m *GroupInfo) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -466,7 +522,7 @@ func (m *GroupMember) Reset()         { *m = GroupMember{} }
 func (m *GroupMember) String() string { return proto.CompactTextString(m) }
 func (*GroupMember) ProtoMessage()    {}
 func (*GroupMember) Descriptor() ([]byte, []int) {
-	return fileDescriptor_e091dfce5c49c8b6, []int{4}
+	return fileDescriptor_e091dfce5c49c8b6, []int{5}
 }
 func (m *GroupMember) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -532,7 +588,7 @@ func (m *GroupPolicyInfo) Reset()         { *m = GroupPolicyInfo{} }
 func (m *GroupPolicyInfo) String() string { return proto.CompactTextString(m) }
 func (*GroupPolicyInfo) ProtoMessage()    {}
 func (*GroupPolicyInfo) Descriptor() ([]byte, []int) {
-	return fileDescriptor_e091dfce5c49c8b6, []int{5}
+	return fileDescriptor_e091dfce5c49c8b6, []int{6}
 }
 func (m *GroupPolicyInfo) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -603,7 +659,7 @@ func (m *Proposal) Reset()         { *m = Proposal{} }
 func (m *Proposal) String() string { return proto.CompactTextString(m) }
 func (*Proposal) ProtoMessage()    {}
 func (*Proposal) Descriptor() ([]byte, []int) {
-	return fileDescriptor_e091dfce5c49c8b6, []int{6}
+	return fileDescriptor_e091dfce5c49c8b6, []int{7}
 }
 func (m *Proposal) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -648,7 +704,7 @@ func (m *Tally) Reset()         { *m = Tally{} }
 func (m *Tally) String() string { return proto.CompactTextString(m) }
 func (*Tally) ProtoMessage()    {}
 func (*Tally) Descriptor() ([]byte, []int) {
-	return fileDescriptor_e091dfce5c49c8b6, []int{7}
+	return fileDescriptor_e091dfce5c49c8b6, []int{8}
 }
 func (m *Tally) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -695,7 +751,7 @@ func (m *Vote) Reset()         { *m = Vote{} }
 func (m *Vote) String() string { return proto.CompactTextString(m) }
 func (*Vote) ProtoMessage()    {}
 func (*Vote) Descriptor() ([]byte, []int) {
-	return fileDescriptor_e091dfce5c49c8b6, []int{8}
+	return fileDescriptor_e091dfce5c49c8b6, []int{9}
 }
 func (m *Vote) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -767,6 +823,7 @@ func init() {
 	proto.RegisterType((*Member)(nil), "cosmos.group.v1beta1.Member")
 	proto.RegisterType((*Members)(nil), "cosmos.group.v1beta1.Members")
 	proto.RegisterType((*ThresholdDecisionPolicy)(nil), "cosmos.group.v1beta1.ThresholdDecisionPolicy")
+	proto.RegisterType((*PercentageDecisionPolicy)(nil), "cosmos.group.v1beta1.PercentageDecisionPolicy")
 	proto.RegisterType((*GroupInfo)(nil), "cosmos.group.v1beta1.GroupInfo")
 	proto.RegisterType((*GroupMember)(nil), "cosmos.group.v1beta1.GroupMember")
 	proto.RegisterType((*GroupPolicyInfo)(nil), "cosmos.group.v1beta1.GroupPolicyInfo")
@@ -778,92 +835,93 @@ func init() {
 func init() { proto.RegisterFile("cosmos/group/v1beta1/types.proto", fileDescriptor_e091dfce5c49c8b6) }
 
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 }
 
 func (this *GroupPolicyInfo) Equal(that interface{}) bool {
@@ -1035,6 +1093,44 @@ func (m *ThresholdDecisionPolicy) MarshalToSizedBuffer(dAtA []byte) (int, error)
 	return len(dAtA) - i, nil
 }
 
+func (m *PercentageDecisionPolicy) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *PercentageDecisionPolicy) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *PercentageDecisionPolicy) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
+	_ = l
+	n3, err3 := github_com_gogo_protobuf_types.StdDurationMarshalTo(m.Timeout, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdDuration(m.Timeout):])
+	if err3 != nil {
+		return 0, err3
+	}
+	i -= n3
+	i = encodeVarintTypes(dAtA, i, uint64(n3))
+	i--
+	dAtA[i] = 0x12
+	if len(m.Percentage) > 0 {
+		i -= len(m.Percentage)
+		copy(dAtA[i:], m.Percentage)
+		i = encodeVarintTypes(dAtA, i, uint64(len(m.Percentage)))
+		i--
+		dAtA[i] = 0xa
+	}
+	return len(dAtA) - i, nil
+}
+
 func (m *GroupInfo) Marshal() (dAtA []byte, err error) {
 	size := m.Size()
 	dAtA = make([]byte, size)
@@ -1055,12 +1151,12 @@ func (m *GroupInfo) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 	_ = i
 	var l int
 	_ = l
-	n3, err3 := github_com_gogo_protobuf_types.StdTimeMarshalTo(m.CreatedAt, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(m.CreatedAt):])
-	if err3 != nil {
-		return 0, err3
+	n4, err4 := github_com_gogo_protobuf_types.StdTimeMarshalTo(m.CreatedAt, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(m.CreatedAt):])
+	if err4 != nil {
+		return 0, err4
 	}
-	i -= n3
-	i = encodeVarintTypes(dAtA, i, uint64(n3))
+	i -= n4
+	i = encodeVarintTypes(dAtA, i, uint64(n4))
 	i--
 	dAtA[i] = 0x32
 	if len(m.TotalWeight) > 0 {
@@ -1157,12 +1253,12 @@ func (m *GroupPolicyInfo) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 	_ = i
 	var l int
 	_ = l
-	n5, err5 := github_com_gogo_protobuf_types.StdTimeMarshalTo(m.CreatedAt, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(m.CreatedAt):])
-	if err5 != nil {
-		return 0, err5
+	n6, err6 := github_com_gogo_protobuf_types.StdTimeMarshalTo(m.CreatedAt, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(m.CreatedAt):])
+	if err6 != nil {
+		return 0, err6
 	}
-	i -= n5
-	i = encodeVarintTypes(dAtA, i, uint64(n5))
+	i -= n6
+	i = encodeVarintTypes(dAtA, i, uint64(n6))
 	i--
 	dAtA[i] = 0x3a
 	if m.DecisionPolicy != nil {
@@ -1250,12 +1346,12 @@ func (m *Proposal) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 		i--
 		dAtA[i] = 0x60
 	}
-	n7, err7 := github_com_gogo_protobuf_types.StdTimeMarshalTo(m.Timeout, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(m.Timeout):])
-	if err7 != nil {
-		return 0, err7
+	n8, err8 := github_com_gogo_protobuf_types.StdTimeMarshalTo(m.Timeout, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(m.Timeout):])
+	if err8 != nil {
+		return 0, err8
 	}
-	i -= n7
-	i = encodeVarintTypes(dAtA, i, uint64(n7))
+	i -= n8
+	i = encodeVarintTypes(dAtA, i, uint64(n8))
 	i--
 	dAtA[i] = 0x5a
 	{
@@ -1288,12 +1384,12 @@ func (m *Proposal) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 		i--
 		dAtA[i] = 0x30
 	}
-	n9, err9 := github_com_gogo_protobuf_types.StdTimeMarshalTo(m.SubmittedAt, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(m.SubmittedAt):])
-	if err9 != nil {
-		return 0, err9
+	n10, err10 := github_com_gogo_protobuf_types.StdTimeMarshalTo(m.SubmittedAt, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(m.SubmittedAt):])
+	if err10 != nil {
+		return 0, err10
 	}
-	i -= n9
-	i = encodeVarintTypes(dAtA, i, uint64(n9))
+	i -= n10
+	i = encodeVarintTypes(dAtA, i, uint64(n10))
 	i--
 	dAtA[i] = 0x2a
 	if len(m.Proposers) > 0 {
@@ -1398,12 +1494,12 @@ func (m *Vote) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 	_ = i
 	var l int
 	_ = l
-	n10, err10 := github_com_gogo_protobuf_types.StdTimeMarshalTo(m.SubmittedAt, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(m.SubmittedAt):])
-	if err10 != nil {
-		return 0, err10
+	n11, err11 := github_com_gogo_protobuf_types.StdTimeMarshalTo(m.SubmittedAt, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(m.SubmittedAt):])
+	if err11 != nil {
+		return 0, err11
 	}
-	i -= n10
-	i = encodeVarintTypes(dAtA, i, uint64(n10))
+	i -= n11
+	i = encodeVarintTypes(dAtA, i, uint64(n11))
 	i--
 	dAtA[i] = 0x2a
 	if len(m.Metadata) > 0 {
@@ -1497,6 +1593,21 @@ func (m *ThresholdDecisionPolicy) Size() (n int) {
 	return n
 }
 
+func (m *PercentageDecisionPolicy) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	l = len(m.Percentage)
+	if l > 0 {
+		n += 1 + l + sovTypes(uint64(l))
+	}
+	l = github_com_gogo_protobuf_types.SizeOfStdDuration(m.Timeout)
+	n += 1 + l + sovTypes(uint64(l))
+	return n
+}
+
 func (m *GroupInfo) Size() (n int) {
 	if m == nil {
 		return 0
@@ -2064,6 +2175,121 @@ func (m *ThresholdDecisionPolicy) Unmarshal(dAtA []byte) error {
 	}
 	return nil
 }
+func (m *PercentageDecisionPolicy) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowTypes
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= uint64(b&0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: PercentageDecisionPolicy: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: PercentageDecisionPolicy: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Percentage", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowTypes
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthTypes
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex < 0 {
+				return ErrInvalidLengthTypes
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Percentage = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
+		case 2:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Timeout", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowTypes
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthTypes
+			}
+			postIndex := iNdEx + msglen
+			if postIndex < 0 {
+				return ErrInvalidLengthTypes
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			if err := github_com_gogo_protobuf_types.StdDurationUnmarshal(&m.Timeout, dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
+		default:
+			iNdEx = preIndex
+			skippy, err := skipTypes(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if (skippy < 0) || (iNdEx+skippy) < 0 {
+				return ErrInvalidLengthTypes
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
 func (m *GroupInfo) Unmarshal(dAtA []byte) error {
 	l := len(dAtA)
 	iNdEx := 0

x/group/types_test.go

@@ -0,0 +1,276 @@
+package group_test
+
+import (
+	"testing"
+	"time"
+
+	"github.com/cosmos/cosmos-sdk/x/group"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestPercentageDecisionPolicyAllow(t *testing.T) {
+	testCases := []struct {
+		name           string
+		policy         *group.PercentageDecisionPolicy
+		tally          *group.Tally
+		totalPower     string
+		votingDuration time.Duration
+		result         group.DecisionPolicyResult
+	}{
+		{
+			"YesCount percentage > decision policy percentage",
+			&group.PercentageDecisionPolicy{
+				Percentage: "0.5",
+				Timeout:    time.Second * 100,
+			},
+			&group.Tally{
+				YesCount:     "2",
+				NoCount:      "0",
+				AbstainCount: "0",
+				VetoCount:    "0",
+			},
+			"3",
+			time.Duration(time.Second * 50),
+			group.DecisionPolicyResult{
+				Allow: true,
+				Final: true,
+			},
+		},
+		{
+			"YesCount percentage == decision policy percentage",
+			&group.PercentageDecisionPolicy{
+				Percentage: "0.5",
+				Timeout:    time.Second * 100,
+			},
+			&group.Tally{
+				YesCount:     "2",
+				NoCount:      "0",
+				AbstainCount: "0",
+				VetoCount:    "0",
+			},
+			"4",
+			time.Duration(time.Second * 50),
+			group.DecisionPolicyResult{
+				Allow: true,
+				Final: true,
+			},
+		},
+		{
+			"YesCount percentage < decision policy percentage",
+			&group.PercentageDecisionPolicy{
+				Percentage: "0.5",
+				Timeout:    time.Second * 100,
+			},
+			&group.Tally{
+				YesCount:     "1",
+				NoCount:      "0",
+				AbstainCount: "0",
+				VetoCount:    "0",
+			},
+			"3",
+			time.Duration(time.Second * 50),
+			group.DecisionPolicyResult{
+				Allow: false,
+				Final: false,
+			},
+		},
+		{
+			"sum percentage (YesCount + undecided votes percentage) < decision policy percentage",
+			&group.PercentageDecisionPolicy{
+				Percentage: "0.5",
+				Timeout:    time.Second * 100,
+			},
+			&group.Tally{
+				YesCount:     "1",
+				NoCount:      "2",
+				AbstainCount: "0",
+				VetoCount:    "0",
+			},
+			"3",
+			time.Duration(time.Second * 50),
+			group.DecisionPolicyResult{
+				Allow: false,
+				Final: true,
+			},
+		},
+		{
+			"sum percentage = decision policy percentage",
+			&group.PercentageDecisionPolicy{
+				Percentage: "0.5",
+				Timeout:    time.Second * 100,
+			},
+			&group.Tally{
+				YesCount:     "1",
+				NoCount:      "2",
+				AbstainCount: "0",
+				VetoCount:    "0",
+			},
+			"4",
+			time.Duration(time.Second * 50),
+			group.DecisionPolicyResult{
+				Allow: false,
+				Final: false,
+			},
+		},
+		{
+			"sum percentage > decision policy percentage",
+			&group.PercentageDecisionPolicy{
+				Percentage: "0.5",
+				Timeout:    time.Second * 100,
+			},
+			&group.Tally{
+				YesCount:     "1",
+				NoCount:      "0",
+				AbstainCount: "0",
+				VetoCount:    "0",
+			},
+			"3",
+			time.Duration(time.Second * 50),
+			group.DecisionPolicyResult{
+				Allow: false,
+				Final: false,
+			},
+		},
+		{
+			"decision policy timeout <= voting duration",
+			&group.PercentageDecisionPolicy{
+				Percentage: "0.5",
+				Timeout:    time.Second * 10,
+			},
+			&group.Tally{
+				YesCount:     "2",
+				NoCount:      "0",
+				AbstainCount: "0",
+				VetoCount:    "0",
+			},
+			"3",
+			time.Duration(time.Second * 50),
+			group.DecisionPolicyResult{
+				Allow: false,
+				Final: true,
+			},
+		},
+	}
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			policyResult, err := tc.policy.Allow(*tc.tally, tc.totalPower, tc.votingDuration)
+			require.NoError(t, err)
+			require.Equal(t, tc.result, policyResult)
+		})
+	}
+}
+
+func TestThresholdDecisionPolicyAllow(t *testing.T) {
+	testCases := []struct {
+		name           string
+		policy         *group.ThresholdDecisionPolicy
+		tally          *group.Tally
+		totalPower     string
+		votingDuration time.Duration
+		result         group.DecisionPolicyResult
+	}{
+		{
+			"YesCount >= threshold decision policy",
+			&group.ThresholdDecisionPolicy{
+				Threshold: "3",
+				Timeout:   time.Second * 100,
+			},
+			&group.Tally{
+				YesCount:     "3",
+				NoCount:      "0",
+				AbstainCount: "0",
+				VetoCount:    "0",
+			},
+			"3",
+			time.Duration(time.Second * 50),
+			group.DecisionPolicyResult{
+				Allow: true,
+				Final: true,
+			},
+		},
+		{
+			"YesCount < threshold decision policy",
+			&group.ThresholdDecisionPolicy{
+				Threshold: "3",
+				Timeout:   time.Second * 100,
+			},
+			&group.Tally{
+				YesCount:     "1",
+				NoCount:      "0",
+				AbstainCount: "0",
+				VetoCount:    "0",
+			},
+			"3",
+			time.Duration(time.Second * 50),
+			group.DecisionPolicyResult{
+				Allow: false,
+				Final: false,
+			},
+		},
+		{
+			"sum votes < threshold decision policy",
+			&group.ThresholdDecisionPolicy{
+				Threshold: "3",
+				Timeout:   time.Second * 100,
+			},
+			&group.Tally{
+				YesCount:     "1",
+				NoCount:      "0",
+				AbstainCount: "0",
+				VetoCount:    "0",
+			},
+			"2",
+			time.Duration(time.Second * 50),
+			group.DecisionPolicyResult{
+				Allow: false,
+				Final: true,
+			},
+		},
+		{
+			"sum votes >= threshold decision policy",
+			&group.ThresholdDecisionPolicy{
+				Threshold: "3",
+				Timeout:   time.Second * 100,
+			},
+			&group.Tally{
+				YesCount:     "1",
+				NoCount:      "0",
+				AbstainCount: "0",
+				VetoCount:    "0",
+			},
+			"3",
+			time.Duration(time.Second * 50),
+			group.DecisionPolicyResult{
+				Allow: false,
+				Final: false,
+			},
+		},
+		{
+			"decision policy timeout <= voting duration",
+			&group.ThresholdDecisionPolicy{
+				Threshold: "3",
+				Timeout:   time.Second * 10,
+			},
+			&group.Tally{
+				YesCount:     "3",
+				NoCount:      "0",
+				AbstainCount: "0",
+				VetoCount:    "0",
+			},
+			"3",
+			time.Duration(time.Second * 50),
+			group.DecisionPolicyResult{
+				Allow: false,
+				Final: true,
+			},
+		},
+	}
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			policyResult, err := tc.policy.Allow(*tc.tally, tc.totalPower, tc.votingDuration)
+			require.NoError(t, err)
+			require.Equal(t, tc.result, policyResult)
+		})
+	}
+}