diff --git a/app/models/venue_management_bill.rb b/app/models/venue_management_bill.rb
index 565410e..6f0e283 100644
--- a/app/models/venue_management_bill.rb
+++ b/app/models/venue_management_bill.rb
@@ -73,10 +73,18 @@ class VenueManagementBill
       i = find_insert_index(days,delay_in_days)
       ref = JSON.parse(\"{\\\"annual_interest\\\": #{1/365.0},\\\"double_dividend\\\": #{1/2.0},\\\"daily_interest\\\": #{1/1.0}}\")
       if(days[i-1] < delay_in_days && interest_types[i-1] != undefined ){
-        result = _interests[i - 1] * (delay_in_days * ref[interest_types[i-1]]).ceil()
+        if(interest_types[i-1] == 'double_dividend'){
+          result = _interests[i - 1] * (delay_in_days * ref[interest_types[i-1]]).ceil()
+        }else{
+          result = _interests[i - 1] * (delay_in_days * ref[interest_types[i-1]])
+        }
       }else{
         if(i != 1 && days[i-2] < delay_in_days && interest_types[i-2] != undefined ){
-          result = _interests[i - 2] * (delay_in_days * ref[interest_types[i-2]]).ceil()
+          if(interest_types[i-2] == 'double_dividend'){
+            result = _interests[i - 2] * (delay_in_days * ref[interest_types[i-2]]).ceil()
+          }else{
+            result = _interests[i - 2] * (delay_in_days * ref[interest_types[i-2]])
+          }
         }else{
           result = 0
         }