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 Fixed expenses Operating income (loss) Contribution margin per unt Case #1 Case 12 Case 3 Case #4 18,300 12,200 7.320 $ 219.00 $ 122,000 $ 366,000 146,400 86,400 61,000 39.040 122,000 $ 9.760 $ 14,640 $ (12,200) $ 10 5 13 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 dollar amount.) Case #1 Case #2 Case Case 4 Sales $ 522,000 $ 422,000 $ 622,000 Variable expenses 274,300 435,400 Fixed expenses 105,500 136 600 Operating income (loss) $ 8,100 $ 26,600 $ (5,000) Average contribution margin (percentage) 20% 60%