diff --git a/hb_server/apps/pm/views.py b/hb_server/apps/pm/views.py
index f77a5a6..81093ac 100644
--- a/hb_server/apps/pm/views.py
+++ b/hb_server/apps/pm/views.py
@@ -66,15 +66,20 @@ class ResourceViewSet(GenericViewSet):
         rdata = request.data
         serializer = self.get_serializer(data=rdata)
         serializer.is_valid(raise_exception=True)
+        res_d_list = []
         res = []
         for i in rdata:
             materials = InputMaterial.objects.filter(subproduction__product__id=i['id'], 
-            subproduction__is_deleted=False, is_deleted=False, material__type__in=[3,4]).order_by('material__number')
-            for m in materials:
-                for x in res:
-                    if x['id'] == m.material.id:
-                        x['count'] = x['count'] +  m.count*i['count']
-                        break
+            subproduction__is_deleted=False, is_deleted=False, material__type__in=[3,4]).order_by('material__number')\
+                .values('material__id', 'material__name', 'material__number', 'material__type', 'count', 'material__count')
+            l_m = list(materials)
+            for m in l_m:
+                if m['material__id'] in res_d_list:
+                    index = res_d_list.index(m['material__id'])
+                    res[index]['count'] = res[index]['count'] + m['count']*i['count']
                 else:
-                    res.append({'id':m.material.id, 'name':m.material.name, 'type':m.material.type, 'number':m.material.number, 'count':m.count*i['count']})
+                    res_d_list.append(m['material__id'])
+                    res.append({'id':m['material__id'], 'name':m['material__name'],
+                     'type':m['material__type'], 'number':m['material__number'], 
+                     'count':m['count']*i['count'], 'inv_count':m['material__count']})
         return Response(res)