Fill in the blanks for each of the following independent cases. (Click the icon to view the cases.) (For entries with a $0 balance, make sure to enter "0" in the appropriate cell. Round the contribution margin percentage to the nearest whole percent.) Variable Fixed Total Operating Contribution i X Data Table Case Revenues Costs Costs Costs Income Margin Percentage a. $ 200 $ 600 $ 1,800 % b. $ 2,200 $ % Variable Costs 800 $ Contribution Margin Percentage Total Costs c. $ $ Operating Income Fixed Costs 400 % 800 Case Revenues d. $ 1,500 $ 400 40 % Case a. $ 200 $ 600 $ 1,800 Case b. $ 2,200 400 $ 400 Case c. $ 800 $ 400 $ 800 Case d. 1,500 $ 400 40% Print Done