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 $ 30,000

Variable expenses 16,500

Contribution margin 13,500

Fixed expenses 7,830

Net operating income $ 5,670 Required:

5. If sales decline to 900 units, what would be the net operating income?

6. If the selling price increases by $2 per unit and the sales volume decreases by 100 units, what would be the net operating income?

7. If the variable cost per unit increases by $1, spending on advertising increases by $1,200, and unit sales increase by 140 units, what would be the net operating income?

8. What is the break-even point in unit sales?

9. What is the break-even point in dollar sales?

10. How many units must be sold to achieve a target profit of $8,100?

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 decimal places.)

13. 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.)

14. 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 $7,830 and the total fixed expenses are $16,500. Under this scenario and assuming that total sales remain the same, what is the degree of operating leverage? (Round your answer to 2 decimal places.)

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 $7,830 and the total fixed expenses are $16,500. 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? (Round your intermediate calculations and final answer to 2 decimal places.)