The following is Addison Corporation's contribution format income statement for last month: Sales Variable expenses Contribution margin Fixed expenses Net operating income $1,000,000 700.000 300,000 180,000 $ 120,000 The company has no beginning or ending inventories. A total of 20,000 units were produced and sold last month. 1. What is the company's contribution margin ratio? A. 250% B. 150% C. 70% D. 30% 2. What is the company's break-even in units? A. 20,000 units B. O units C. 18,000 units D. 12,000 units 3. If sales increase by 100 units, by how much should net operating income increase? A. $400 B. $4,800 C. $1,500 D. $2,500 4. How many units would the company have to sell to attain the target profit of $150,000? A. 22,000 B. 37,500 C. 25,000 D. 26,667