Colonial Pharmaceuticals is a small firm specializing in new products. It is organized into two divisions, which are based on the products they produce. AC Division is smaller and the life of the products it produces tend to be shorter than those produced by the larger SO Division. Selected financial data for the past year is shown below. Divisional investment is as of the beginning of the year. Colonial Pharmaceuticals uses a 9 percent cost of capital and uses beginning-of-the-year investment when computing ROl and residual income. Ignore income taxes AC DivisionSO Division Allocated corp. overhead Cost of goods sold Divisional investment R&D Sales SG&A $ 630 3,260 9,600 2,300 9,200 790 $ 1,500 6,400 77,000 3,300 17,000 1,230 Required a. Compute divisional income for the two divisions AC Division SO Division Divisional income b. Calculate the operating margin, which is equivalent to the return on sales, for the two divisions. (Enter your answers as a percentage rounded to 2 decimal places (i.e., 32.16).) AC Division SO Division Operating margin c. Calculate ROI for the two divisions. (Enter your answers as a percentage rounded to 2 decimal places (i.e., 32.16).) AC Division SO Division ROI d. Compute residual income for the two divisions. (Negative amounts should be indicated by a minus sign.) AC Division SO Division Residual income