Required information The Foundational 15 (Algo) (L06-1, LO6-3, L06-4, LO6-5, L06-6, L06-7, LO6-8] [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 $ 40,000 Variable expenses Contribution margin Fixed expenses Net operating income 26,000 14,000 8,680 $ 5,320 Foundational 6-1 (Algo) Foundational 6-1 (Algo) Required: 1. What is the contribution margin per unit? (Round your answer to 2 decimal places.) Contribution margin per unit Foundational 6-2 (Algo) ok 2. What is the contribution margin ratio? t Contribution margin ratio % nces Foundational 6-3 (Algo) 3. What is the variable expense ratio? Variable expense ratio % Foundational 6-4 (Algo) 4. I sales increase to 1,001 units, what would be the increase in net operating income? (Round your answer to 2 decimal places.) Increase in net operating income