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: Answer is not complete. 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: Note: Loss amounts should be indicated by a minus sign. Case 1 Case 2 Case 3 Case 4 Units sold 9,800 13,200 20,200 4,400 Sales $ 274,400 $ 316,800 $ 424,200 $ 118,800 Variable expenses 176,400 171,600 222,200 Fixed expenses 88,000 172,000 76,000 Net operating income (loss) $ 10,000 $ (26,800) $ 122,000 $ (27,600) Contribution margin per unit $ 10 11 $ 10