diff --git a/app/views.py b/app/views.py
index 26d3f0b..6be795b 100644
--- a/app/views.py
+++ b/app/views.py
@@ -975,7 +975,7 @@ class HatchingsViewSet(viewsets.ModelViewSet):
                 hatching.PedigreeName = BREED_STANDARDIZATION[hatching.PedigreeName]
             hatching.KillingAve = ave_age
             hatching.samasat_discharge_percentage = int(
-                ((hatching.Evacuation + bars_quantity) / hatching.ChickCountSum) * 100)
+                ((hatching.Evacuation + bars_quantity) / hatching.ChickCountSum) * 100) if hatching.ChickCountSum > 0 else 0
             hatching.save()
         else:
             print('تعداد حمل صفر است')