Presented here is the income statement for Big Surf, Inc., for the month of May:

Sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 65,000

Cost of goods sold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53,500

Gross profit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 11,500

Operating expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14,000

Operating loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ (2,500)

Based on an analysis of cost behavior patterns, it has been determined that the company’s contribution margin ratio is 30%.

Required:

a. Rearrange the preceding income statement to the contribution margin format.

b. If sales increase by 10%, what will be the firm’s operating income?

c. Calculate the amount of revenue required for Big Surf, Inc., to break even.