Presented below is selected information for three regional divisions of Medina Company. Divisions North West South Contribution margin $300,300 $499,000 $399,200 Controllable margin $139,700 $360,600 $209,900 Average operating assets $997,857 $1,567,826 $1,499,286 Minimum rate of return 13 % 14 % 9 % Compute the return on investment for each division. (Round ROI to 0 decimal places, e. g. 15.) North Division % West Division % South Division % Compute the residual income for each division. (Round final answers to 0 decimal places, e. g. 1,255.) North Division $ West Division $ South Division $ Assume that each division has an investment opportunity that would provide a rate of return of 16%. (1) If ROI is used to measure performance, which division or divisions will probably make the additional investment? (2) If residual income is used to measure performance, which division or divisions will probably make the additional investment?

                                                     North     West           South

Contribution margin           $300,300$499,000$399,200

Controllable margin            $139,700$360,600$209,900

Average operating assets    $997,857$1,567,826$1,499,286

Minimum rate of return            13%            14%          9%

return on investment (ROI) = controllable margin / average operating assets

North's ROI = $139,700 / $997,857 = 14%

West's ROI = $360,600 / $1,567,826 = 23%

South's ROI = $209,900 / $1,499,286  = 14%

residual income = controllable margin - (average operating assets x minimum rate of return)

North's RI = $139,700 - ($997,857 x 13%) = $9,978.59

West's RI = $360,600 - ($1,567,826 x 14%) = $141,104.36

South's RI = $209,900 - ($1,499,286  x 9%) = $74,964.26

(1) If ROI is used to measure performance, which division or divisions will probably make the additional investment?

North and South divisions should probably make the additional investments since their current ROI is less than 16%

(2) If residual income is used to measure performance, which division or divisions will probably make the additional investment?

All the divisions since their minimum required rate of return is less than 16%.

b is the correct answer

answer(d) encourage cooperation by improving the chances of mutually agreeable transactions;