Osio 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) 10. How many units must be sold to achieve a target profit of $18,900 ? (Round intermediat 11. What is the margin of safety in dollars? What is the margin of safety percentage? 12. What is the degree of operating leverage? (Round your answer to 2 decin 13. Using the degree of operating leverage; what is the estimated percent increase in net operating income that would result from a 5% increase in unit sales? (Round your intermediate calculations and final answer to 2 decimal places.) 14. 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 $27720 and the total fixed expenses are $73,500. Under this scenario and assuming that total soles femain the same, what is the degree of operating leverage? (Round your answer to 2 decimal places.) 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 $27.720 and the total fixed expenses are $73,500. 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.)