精选优质文档-倾情为你奉上RatiosProfitability ratiosProfitability ratios measure the firms use of its assets and control of its expenses to generate an acceptable rate of return., Gross profit margin or Gross Profit RateOR , Operating Income Margin, Operating profit margin or Return on sales (ROS) Note: Operating income is the difference between operating revenues and operating expenses, but it is also sometimes used as a synonym for EBIT and operating profit. This is true if the f
