3 Part 3 of 15 Required information The following information applies to the questions displayed below) Westerville Company reported the following results from last year's operations: 10 points Sales Variable expenses Contribution margin Fixed expenses Net operating income Average operating assets $1,400,000 510,000 890,000 610,000 $ 280,000 $ 875,000 Print At the beginning of this year, the company has a $175,000 Investment opportunity with the following cost and revenue characteristics: Sales Contribution margin ratio Fixed expenses $280,000 50% of sales $ 98,000 The company's minimum required rate of return is 15% 3. What is last year's return on investment (ROI)? (Round your intermediate calculations to 1 decimat place.) ROI % 4. What is the margin related to this year's investment opportunity? Margin %