Q2: Fill in the missing amounts in each of the four 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.) Case Units Sales Sold Variable Expenses Contribution Margin per Fixed Expenses Net Operating Unit Income A 20,000 $300,000 $220,000 ? $45,000 ? B 12,000 ? $120,000 $15 ? $18,000 Case Sales Variable Average Fixed Net Operating Expenses Contribution Expenses Income Margin Ratio $900,000 ? 40% ? $125,000 D ? ? 45% $120,000 $37,500 Required: 1. Cases A and B assume that only one product is being sold. 2. Cases C and D assume that more than one product is being sold.