目前大型商业零售企业赢利模式主要有三种：商品进销价差型，或代理费型；

There are mainly three kinds of retailers profit modes at present: the type of seeking profit from price difference between buying and selling, or the agency fee type;

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今天我们使用计算机对商品进销存信息进行管理，具有手工管理所无法比拟的优点。

Today we use the computer to enter for the commodity sell save the information to carry on the management, has merit which the manual administration center is unable to compare.

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此外，尽管REDcard有利于促进销售，但由于人们会利用它来购买更多打折产品，这些商品的销售利润率反而受到了影响。

The REDcard helped boost sales, but because people were using it to buy more products at discounted prices, the profit margin for those sales took a hit.

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