Required information The Foundational 15 [LO5-1, LO5-3, LO5-4, LO5-5, LO5-6, LO5-7, LO5-8] 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 s 28,000 12,60e 8,000 6,909 $ 2,800