ssignment#/1 Weeks 4&5 (Chapter 4) (i Saved 4 Required: a. Assume that only one product is being sold In each of the following four case situations: Case #1 Case #2 Case #3 Case #4 points Unit sold 15,300 10,200 6,120 Sales S 183.600 $ 102,000 S 306,000 Variable expenses 122.400 71,400 Fixed expenses 51,000 32,640 102,000 Operating income (loss) $ 8, 160 $ 12,240 $ (10,200) Contribution margin per unit $ 10 $ 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 #3 Case #4 Sales 5 502,000 5 402,000 602.000 Variable expenses 261,300 421.400 Fixed expenses 100,500 130.600 Operating income (loss $ 7.100 S 20.600 S (4,800) Average contribution margin (percentage 20% 80%