a percentage showing the relationship between the profit a company makes and the money that it obtains from sales (revenue) 利润率ⓘ This is often seen as a sign of the general efficiency of the company 这经常被视为公司总体赢利能力的标志◆The company showed a very disappointing profit margin of 0.4% of revenue. 这家公司的利润率仅占收入的 0.4%，令人非常失望。◆The most profitable department store had a pre-tax profit margin of 14.2% on sales of $9.3 billion. 最赚钱的百货商店销售额为 93 亿元，税前利润率为 14.2%。
the difference between the cost of buying or producing sth and the price that it is sold for, calculated as a percentage of the selling price 边际利润（购买或生产成本与销售价之间的差额）SYNmargin