diff --git a/app/models/sale.rb b/app/models/sale.rb
index 06552010..0e767ea0 100644
--- a/app/models/sale.rb
+++ b/app/models/sale.rb
@@ -281,8 +281,8 @@ class Sale < ApplicationRecord
       # sale_tax.tax_payable_amount = total_taxable  * tax.rate
 
       # substract , to give after discount
-      total_taxable = total_taxable - total_discount
-      sale_tax.tax_payable_amount = total_taxable  * tax.rate / 100
+      total_tax = total_taxable - total_discount
+      sale_tax.tax_payable_amount = total_tax  * tax.rate / 100
       #new taxable amount is standard rule for step by step
       # total_taxable = total_taxable + sale_tax.tax_payable_amount