Fill in the missing amounts in each of the eight case situations below. Each case is independent of the others. 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: Complete this question by entering your answers in the tabs below. Required A Required B Assume that only one product is being sold in each of the four following case situations: (Loss amounts should be indicated by a minus sign.) Case #1 Case #2 Case #31 Case #4 Unit sold 9,300 20,700 5,800 Sales $ 306,900 $ 408,800 $ 150,800 Variable expenses 176,700 269,100 Fixed expenses 83,000 173,000 86,000 Net operating income (loss) $ 47,200 $ 46,000 $ 102,300 $ (45,400) Contribution margin per unit $ 14 $ 15 $ 9