Same question, broken up please help very confused

Required information The Foundational 15 (Algo) [LO6-1, L06-3, LO6-4, LO6-5, LO6-6, LO6-7, LO6-8] [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): Foundational 6-1 (Algo) Required: 1. What is the contribution margin per unit? (Round your answer to 2 decimal places.) 2. What is the contribution margin ratio? 3. What is the variable expense ratio? 4. If sales increase to 1,001 units, what would be the increase in net operating income? (Round your answer to 2 decimal places.) 5. If sales decline to 900 units, what would be the net operating income? (Round "Per Unit" calculations to 2 decimal places.) 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? (Round "Per Unit" calculations to 2 decimal places.) 7. If the variable cost per unit increases by $1, spending on advertising increases by $1,250, and unit sales increase by 150 units, what would be the net operating income? (Round "Per Unit" calculations to 2 decimal places.) 8. What is the break-even point in unit sales? (Round intermediate calculations to 2 decimal places.) 9. What is the break-even point in dollar sales? 10. How many units must be sold to achieve a target profit of $8,400 ? (Round intermediate calculations to 2 decimal places.) 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 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 $8,400 and the total fixed expenses are $21,000. 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 company's total variable expenses and total fixed expenses were reversed. In other words, assume that the total variable expenses are $8,400 and the total fixed expenses are $21,000. 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.)