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 $80,000 52,000 28,000 21,840 $ 6,160 2. What is the contribution margin ratio? Contribution margin ratio