The Foundational 15 (L06-1, L06-3, LO6-4, LO6-5, LO6-6, LO6-7, 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 Variable expenses Contribution margin Fixed expenses Net operating income $ 20,eee 12.000 8,eee 6,000 $ 2.ee Foundational 6-1 Required: 1 What is the contribution margin per unit? Contribution margin per unit 2. What is the contribution margin ratio? Contribution margin ratio % 4. If sales increase to 1,001 units, what would be the increase in net operating income? Increase in net operating income 5. If sales decline to 900 units, what would be the net operating income? Net operating income