Required information. [The following information applies to the questions displayed below.) Oslo Company prepared the following contribution format income statement based on a sales volume of 1,000 units (the relevant range of production is 500 units to 1,500 units): Sales Variable expenses Contribution margin Fixed expenses Operating incone $ 23,900 13,300 10,600 7,632 $ 2,968 15. Assume that the amounts of the company's total variable expenses and total fixed expenses were reversed. In other words, assume that the total variable expenses are $7,632 and the total fixed expenses are $13,300. Given this scenario, and assuming that total sales remain the same, calculate the degree of operating leverage. Using the calculated degree of operating leverage, what is the estimated percent increase in operating income of a 4% increase in sales? (Do not round intermediate calculations. Round your percentage answer to 2 decimal places (i.e 1234 should be entered as 12.34)). Increase in operating income