Company shall pay to Contractor a commission of six percent of gross sales.

本公司应当向承包商支付总销售额百分之六的佣金.

An important feature of the income statement is the fact that returns allowances , and most discounts are offsets to gross sales .

利润表的一个重要特征是销售退回、折让以及折扣要从总销售额中予以递减。