读了《中小学数学》初中版2010年第7-8期郑世圣、左昌翠两位老师的《利润不是“售价与进价的差”》一文,文章指出:利润是售价与成本价的差,而不是商品售价与商品进价的差。对这一观点笔者不敢苟同,现谈谈自己对这一问题的理解,和两位老师探讨.为阐述方便,先将部分原文摘录如下:例:新华商场销售某种冰箱,每台进货价为2500 Read the “primary and secondary mathematics” 2010-7-8 Zheng Shisheng, Zuo Chang Cui two teachers, “the profit is not ” the difference between the selling price and the purchase price “” article, the article states: profit is the price and The difference between the cost price, rather than the difference between the price of goods and the purchase price of goods. I do not agree with this view, now talk about their understanding of this issue, and two teachers to explore for ease of exposition, the first part of the original excerpt from the following: Example: Xinhua mall sales of a refrigerator, each purchase price Is 2500