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.) a. Assume that only one product is being sold in each of the following four case situations: Contribution Fixed Operating Income Variable Marginper Expenses --(Loss) Case Units SoldSales Unit $ 90,000 6,500 S 325,000 S 162,500 22 250,000 93,2 S 780,000 42,000 $ 97600 (25,000) 25,000 $ 550,000 S 6,600 $ 363,000 b. Assume that more than one product is being sold in each of the following four case situations: Variable Contribution Expenses (Loss) Operating Average Sales Expenses Margin (percent) Fixed 1S 450,000 46 | 96 $ 65,000 2 145,000 $ 100,050 % | $ 26,000 % | $ 550,000| $ 70,000 $ (31,000) 4 S 350,000$ 87,500