Presented below is selected information for three regional divisions of Medina Company. Divisions North West South Contribution margin $299,100 $499,600 $401,000 Controllable margin $139,500 $360,000 $210,000 Average operating assets $930,000 $1,440,000 $1,400,000 Minimum rate of return 11 % 14 % 8 % (b) Compute the residual income for each division. North Division $ West Division $ $ South Division $ e Textbook and Media Save for Later