【正文】
sales (ROS) Note: Operating ine is the difference between operating revenues and operating expenses, but it is also sometimes used as a synonym for EBIT and operating profit.[10] This is true if the firm has no nonoperating ine. (Earnings before interest and taxes / Sales) Profit margin, net margin or net profit margin Return on equity (ROE) Return on investment (ROI ratio or Du Pont ratio) Return on assets (ROA) Return on assets Du Pont (ROA Du Pont) Return on Equity Du Pont (ROE Du Pont) Retu