diff --git a/app/api/logic/CartLogic.php b/app/api/logic/CartLogic.php
index 11ad6b4c..e1ed13ee 100755
--- a/app/api/logic/CartLogic.php
+++ b/app/api/logic/CartLogic.php
@@ -104,7 +104,7 @@ class CartLogic extends Logic
                     }
                     $sub_price = round($cart['goods_item']['price'] * $cart['goods_num'], 2);
                 } else {
-                      $goods_total_amounts = round($cart['goods_item']['price'] * $cart['goods_num'],2);
+                      $goods_total_amounts = round(0.88*$cart['goods_item']['price'] * $cart['goods_num'],2);
                     // var_dump(333);
                     $cart['selected'] = 0;
                 }