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 following four case situations Unit sold Sales Variable expenses Feed expenses Operating income (oss) Contribution margin por un Case 1 Case #2 Case 3 Case 15,000 15.000 4,000 5 180,000 $ 105,000 5 360,000 120,000 80,000 43,000 35,000 100,000 $ 11,000 $ 105.000 3 (40.000) 5 205 15 b. Assume that more than one product is being sold in each of the following four case situations (Enter "Contribution margin ratio in percent. Round your final answers to the nearest whole collar amount.) Sales Variable expenses Fed expenses Operating income oss) Average contribution margin arcentago) Case 1 Case #2 $ 400,000 $ 450,000 276,000 135,000 $ 7,000 25% Case 3 Case $ 600,000 420,000 110,000 $ 22,000 $ (4.800) 509