Return on Investment (ROI); Return on Sales (ROS); Asset Turnover (AT) Liz Raiborn,...

Return on Investment (ROI); Return on Sales (ROS); Asset Turnover (AT) Liz Raiborn, Inc., has the following financial results for the years 2013 through 2015 for its three regional divisions:

Required Calculate return on sales (ROS), asset turnover (AT) and return on investment (ROI) for each division and for the firm as a whole for each of the three years 2013, 2014, and 2015.