Oslo Company prepared the following contribution format income statement based on a sales volume of1,000 units (the relevant range of production is 500 units to 1,500 units): Sales 32 22, 100 Variable expenses 12, F00 Contribution margin 9, 400 Fixed expenses ?, F08 Net operating income 31 l, 692 Required: What is the contribution margin ratio? (Round your answer to 2 decimal places.) \"A