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: (Loss amounts should be indicated by a minus sign.) Case #1 Case #2 Case #3 Case #4 Sales $ 443,000 $ 203,000 $ 296,000 Variable expenses 79,920 127,890 62,000 Fixed expenses 475,000 Net operating income (loss) $ 63,200 $ 68,660 $ (6,920) Contribution margin ratio (percent) 40 % % 78% %