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 $ 35,000 21,000 14,000 8,400 $ 5,600 Foundational 6-2 (Algo) 2. What is the contribution margin ratio? Contribution margin ratio