Fill in the missing amounts in each of the following eight case situations. Treat each case independently. (Hint: One way to find the missing amounts would be to prepare a contribution margin 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: (Negative amounts should be indicated by a minus sign. Enter your contribution margin answers as per unit dollar values. Enter your answers rounded to the nearest whole number.) Case Units Sold Sales Variable Expenses Contribution Margin Fixed Expenses Net Income (Loss) 1 14,000 $ $ 196,000 145,000 55,000 23,000 2 40% $8 per unit $33 per unit 70,000 $31 per unit 3 10,000 14 10,000 4 245,000 101,000 (11,000) b. Assume that more than one product is being sold in each of the following four case situations: (Negative amounts should be indicated by a minus sign.) Case Sales Variable Expenses Average Contribution Margin (percentage) 15 Fixed Expenses Net Income (Loss) 1 $ 8,000 $ 520,000 390,000 2 234,000 114,000 103,000 3 50 22,000 (7,000) 4 560,000 392,000