Required information [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): Sales $ 2 5 , 7 0 0 Variable expenses 13, 900 Contribution margin 11 , 800 Fixed expenses 7 , 788 Operating income $ 4 , 0 12 ' 11-a. What is the margin of safety in dollars? (Do not round intermediate calculations.) 11-b. What is the margin of safety percentage? (Round your final answer to the nearest whole percentage (Le, .12 should be entered as 12).) % Required information [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): Sales $ 25 , 700 Variable expenses 13 , 900 Contribution margin 11 , 800 Fixed expenses 7 , 788 Operating income $ 4 , 012 10. How many units must be sold to achieve a target profit of $7,906? (Do not round intermediate calculations.) Number of units