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 amountswould 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: (For all requirements, Loss amounts should be indicated by a minus sign.) Complete this question by entering your answers in the tabs below RequiredA Required B Assume that more than one product is being sold in each of the four following case situations: Case #4 $302,000 Case #1 Case #2 Case #3 Sales Variable expenses Fixed expenses Net operating income (loss) Contribution margin ratio (percent) 442,000$195,000 132 87,580 57,000 473,000 $47,540 55,000 18,580) 37 % 75 %