TB MC Qu. 11-140 The following data are for the Akron... The following data are for the Akron Division of Consolidated Rubber, Inc. Sales Net operating income Average operating assets Stockholders' equity Residual income $850,000 $ 55,000 $ 350,000 $ 85,000 $ 25,000 For the past year, the margin used in ROI calculations was: For the past year, the margin used in ROI calculations was: ook