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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 #3 Case #1 453,000 $ $ $ Case #2 208,000 128,960 54,000 Case #4 308,000 80,080 Sales Variable expenses Fixed expenses Net operating income (loss) Contribution margin ratio (percent) 469,000 $ $ 83,210 $ 920 56,610 37 % 79 % %