Fill in the missing amounts in each of the eight case situations below. Each case is independent of the others. (Hint: One way to find the missing amounts would be to prepare a contribution format income statement for each case, enter the known data, and then compute the missing items.) Required: a. Assume that only one product is being sold in each of the four following case situations: Case #1 Case #2 Case #3 Case #4 4,200 S 126,000 8,600 Unit sold Sales Variable expenses Fixed expenses Net operating income (loss) Contribution margin per unit 20,900 S 275,200 379,900 172,000 209,000 78,000 69,000 66,800 163,800 (27,600) 84,000 18 S 12 b. Assume that more than one product is being sold in each of the four following case situations: Case #1 Case #2 Case #3 Case #4 S 291,000 Sales Variable expenses Fixed expenses Net operating income (loss) Average contribution margin ratio (percent) $ 454,000 201,000 132,660 50,000 90,210 472,000 $ 81,760 $ 77,120 S (30,210) 44% 78%