The following data are for the Akron Division of Consolidated Rubber, Inc.: Sales Net operating income Average operating assets Stockholders' equity Residual income $750,000 $ 45,000 $250,000 $ 75,000 $ 15,000 For the past year, the return on investment was: Multiple Choice 26% 18% 6% 30% The following data are for the Akron Division of Consolidated Rubber, Inc.: Sales Net operating income Average operating assets Stockholders' equity Residual income $750,000 $ 45,000 $250,000 $ 75,000 $ 15,000 For the past year, the return on investment was: Multiple Choice 26% 18% 6% 30%