Required information The Foundational 15 (L010-1, LO10-2) The following information applies to the questions displayed below) Westerville Company reported the following results from last year's operations Salas Variable expenses Contribution margin Fixed expenses Net operating income Average operating assets $ 1,000,000 300,000 700,000 500,000 $ 200,000 $ 625,000 At the beginning of this year, the company has a $120,000 investment opportunity with the following cost and revenue characteristics: Sales Contribution margin ratio Fixed expenses $ 280, 280 60% of sales $ 90,000 The company's minimum required rate of return is 15% Required: 1. What is last year's margin? Margin % 2. What is last year's turnover? (Round your answer to 1 decimal place.) Turnover 3. What is last year's return on investment (ROI)? (Round your intermediate calculations to 1 decimal place.) ROI % 4. What is the margin related to this year's investment opportunity? Margin %