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 more than one product is being sold in each of the four following case situations: Note: Loss amounts should be indicated by a minus sign. Case 1 Case 2 Case 3 Case 4 Sales $ 451,000 $ 193,000 $ 301,000 Variable expenses 248,050 125,450 99,330 Fixed expenses 112,000 64,000 470,000 222,000 Net operating income (loss) $ 90,950 $ 3,550 $ 65,800 $ (20,330) Contribution margin ratio (percent) 45% 35% 76% 67 % < Required A Required B >