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: Assume that only one product is being sold in each of the four following case situations: Case #2 Case #4 Case #1 Case #3 9,800 5,700 Unit sold 20,200 171,000 345,000 Sales 323,400 186,200 282,800 Variable expenses 96,000 83,000 164,000 Fixed expenses S (3,200) 1,600 Net operating income (loss) 122,000 12 Contribution margin per unit 10