diff --git a/apps/pg/views.py b/apps/pg/views.py
index c58ce1e..5022bc1 100644
--- a/apps/pg/views.py
+++ b/apps/pg/views.py
@@ -8,7 +8,7 @@ from oauth2_provider.contrib.rest_framework import IsAuthenticatedOrTokenHasScop
 from rest_framework import generics
 from rest_framework.response import Response
 from rest_framework.views import APIView
-from drf_spectacular.utils import extend_schema, OpenApiParameter
+from drf_spectacular.utils import extend_schema
 
 from utils.commons import calculate_pna_commission
 from .constans import StateChoices
@@ -21,19 +21,11 @@ from ..users.models import User
 
 class CalculateCommissionView(APIView):
     @extend_schema(
-        parameters=[
-            OpenApiParameter(
-                name='amount',
-                required=True,
-                type=float,
-                location=OpenApiParameter.QUERY,
-                description='مبلغ'
-            )
-        ],
+        request=CommissionSerializer,
         responses=CommissionSerializer
     )
-    def get(self, request):
-        serializer = CommissionSerializer(data=request.query_params)
+    def post(self, request):
+        serializer = CommissionSerializer(data=request.data)
         serializer.is_valid(raise_exception=True)
         amount = serializer.validated_data['amount']
         commission = calculate_pna_commission(amount)