Contribution margin Controllable margin Average operating $299,800 $139,900 $932,667 $499,100 $360,000 $1,440,000 $400,100 $210,100 $1,400,667 assets Minimum rate of return 11% 14% 10 % ? (a) Your answer is correct. Compute the return on investment for each division. (Round ROI to 0 decimal places, e.g. 15.) North Division 151 % West Division 25 % South Division 151 % Click if you would like to Show Work for this question: Open Show Work SHOW SOLUTION SHOW ANSWER LINK TO TEXT Atte Compute the residual income for each division. (Round final answers to 0 decimal places, e.g. 1,255.)