The following partial information is available. Complete the table by filling in all the blanks. Each case is independent.

The following partial information is available. Complete the table by filling in all the blanks. Each case is independent. (Click the icon to view the cases.) (Round the contribution margin percentage to the nearest whole percent. Use parentheses or a minus sign for operating losses.) Variable Fixed Total Operating Contribution Case Revenues Costs Costs Costs Income Margin Percentage a. $ 2,400 500 $ 1,430 % b. $ 7,600 $ 8,600 $ 9,600 % C. 1,600 $ 3,600 30 % d. $ 9,350 $ 2,500 $ 8,160 %