【正文】
onversion Period Debt ratios (leveraging ratios)Debt ratios measure the firm39。s use of its assets and control of its expenses to generate an acceptable rate of return.Gross margin, Gross profit margin or Gross Profit RateOR Operating margin, Operating Ine Margin, Operating profit margin or Return on 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 nonoperat