please include steps to solve the problem, thanks!

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: b. Assume that more than one product is being sold in each of the four following case situations: Required A Required B Assume that only one product is being sold in each of the four following case situations: Case #1 Case #2 Case #3 19,200 Unit sold Case 4 4,500 $ 153,000 $ 345,000 9,000 306,000 $ 162,000 89,000 Sales Variable expenses Fixed expenses Net operating income (loss) Contribution margin per unit 153,600 168,000 83,000 (20,000) GA (33,000) $ $ 158,600 $ 13 $ 9 Required A Required B Assume that more than one product is being sold in each of the four following case situations: Case #1 Case #3 $ $ 447,000 $ $ Case #2 191,000 126,060 50,000 Case 4 295.000 78.700 Sales Variable expenses Fixed expenses Net operating income (loss) Contribution margin ratio (percent) 466,000 $ $ $ $ (7.700) 69,270 41 % 112,920 82 %