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 Net operating income $80,000 52,000 28,000 21,840 $ 6,160 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 $21,840 and the total fixed expenses are $52,000. Given this scenario and assuming that total sales remain the same. Using the degree of calculated operating leverage, what is the estimated percent increase in net operating Income of a 5% Increase in sales? (Round your Intermediate calculations and final answer to 2 decimal places.) Increase in net operating income