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 $ 25,000 Variable expenses 17,500 Contribution margin 7,500 Fixed expenses 4,200 Net operating income $ 3,300

10. Using the degree of 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.)

11. 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 $4,200 and the total fixed expenses are $17,500. Under this scenario and assuming that total sales remain the same, what is the degree of operating leverage?

12. 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 $4,200 and the total fixed expenses are $17,500. 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?