Show discounted price per item line

application/libraries/Sale_lib.php

@@ -400,6 +400,7 @@ class Sale_lib
 			$line['price'] = $price;
 			$line['total'] = $this->get_item_total($quantity, $price, $discount);
 			$line['discounted_total'] = $this->get_item_total($quantity, $price, $discount, TRUE);
+			$line['discounted_price'] = $this->get_item_discount($quantity, $price, $discount);
 			$this->set_cart($items);
 		}