Problem 12-23 (Algo) Prepare a contribution margin format income statement; calculate breakeven point LO 12-7, 12-8, 12-9, 12-11 Presented here is the income statement for Big Sky Incorporated for the month of February: Sales $ 61,000 Cost of goods sold 50,600 Gross profit $ 10,400 Operating expenses 13,700 Operating loss $ (3,300) Based on an analysis of cost behavior patterns, it has been determined that the company's contribution margin ratio is 19%. Required: Rearrange the preceding income statement to the contribution margin format. If sales increase by 10%, what will be the firm's operating income (or loss)? Calculate the amount of revenue required for Big Sky to break even.