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 21,500 12,500 9,000 7,200 1,800 $ Required: What is the degree of operating leverage? (Round your answer to 2 decimal places.) Degree of operating leverage