diff --git a/erpnext/shopping_cart/product.py b/erpnext/shopping_cart/product.py
index 1999a4a..912467f 100644
--- a/erpnext/shopping_cart/product.py
+++ b/erpnext/shopping_cart/product.py
@@ -85,7 +85,7 @@
 
 			if pricing_rule:
 				if pricing_rule.pricing_rule_for == "Discount Percentage":
-					price[0].price_list_rate = flt(price[0].price_list_rate * (1.0 - (pricing_rule.discount_percentage / 100.0)))
+					price[0].price_list_rate = flt(price[0].price_list_rate * (1.0 - (flt(pricing_rule.discount_percentage) / 100.0)))
 
 				if pricing_rule.pricing_rule_for == "Price":
 					price[0].price_list_rate = pricing_rule.price_list_rate