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 $ 65,000

Variable expenses 45,500

Contribution margin 19,500

Fixed expenses 14,040

Net operating income $ 5,460

15. Assume that the amounts of the companys total variable expenses and total fixed expenses were reversed. In other words, assume that the total variable expenses are $14,040 and the total fixed expenses are $45,500. Using the degree of operating leverage, what is the estimated percent increase in net operating income of a 5% increase in unit sales? (Round your intermediate calculations and final answer to 2 decimal places.)