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 $95,000 57,000 38, 000 31,920 $ 6,080 Net operating income 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 $31,920 and the total fixed expenses are $57000. 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