Required information [The following information applies to the questions displayed below.] Westerville Company reported the following results from last year's operations: Sales Variable expenses Contribution margin Fixed expenses Net operating income Average operating assets $ 2,200,000 660,000 1,540,000 1,100,000 $ 440,000 $ 1,375,000 At the beginning of this year, the company has a $275,000 investment opportunity with the following cost and revenue characteristics: Sales Contribution margin ratio Fixed expenses $ 440,000 60 of sales $220,000 The company's minimum required rate of return is 15%. 6. What is the ROI related to this year's investment opportunity? ROI %