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 Variable expenses Contribution margin Fixed expenses Net operating income $ 45,000 31,500 13,500 8,640 $4,860 11. What is the margin of safety in dollars? What is the margin of safety percentage? Margin of safety in dollars Margin of safety percentage