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 20,300 12.100 8,200 6,232 1,968 $ Required: What is the contribution margin ratio? (Round your answer to 2 decimal places.) Contribution margin ratio %