Fill in the missing amounts in each of the eight case situations below. Each case is independent of the others. (Hint: One way to find the missing amounts would be to prepare a contribution format income statement for each case, enter the known data, and then compute the missing items.) Required: a. Assume that only one product is being sold in each of the four following case situations: Unit sold Sales Variable expenses Fixed expenses Net operating income (loss) Contribution margin per unit Case #1 Case #2 Case #3 Case #4 9,700 20,000 4,100 $ 291,000 $ 367,200 $ 127,100 126,100 240,000 98,000 179,000 82,000 $ 52,200 $ 131,000 $ (28,700) $ 17 $ 11 b. Assume that more than one product is being sold in each of the four following case situations: Sales Variable expenses Fixed expenses Net operating income (loss) Contribution margin ratio (percent) Case #1 Case #2 $ 458,000 $ 203,000 121,800 69,000 74,360 42% Case #3 Case #4 292,000 84,680 467,000 $ 82,050 $ (25,680) 79%