英语翻译1、销售毛利率高于预期毛利率的原因如下：2、产品系列1：改变包装物,原材料采购价格发生变化原材料A采购单价下调更

The reasons of gross sales margin higher than expected one are as following.Product seriesChanged the packing material, Purchase price changed for the raw material.The unit price of material A reduced.The production plan changed, 3 raw materials cancelledthe cost of transportation between processes are not calculated into the total cost.The unit selling price was not changed according to the above.Please forgive me for the mistake. The errors in the data filling have been corrected.