Westerville Company reported the following results from last year's operations: Sales Variable expenses Contribution margin Fixed expenses Net operating income Average operating assets $ 1,500,000 690,000 810,000 435,000 $ 375,000 $ 1,250,000 At the beginning of this year, the company has a $350,000 investment opportunity with the following cost and revenue characteristics: Sales Contribution margin ratio Fixed expenses $ 420,000 70% of sales $ 252,000 The company's minimum required rate of return is 10%. 4. What is the margin related to this year's investment opportunity? Margin % 6. What is the ROI related to this year's investment opportunity? (Do not round intermediate calculations.) ROL 7. If the company pursues the investment opportunity and otherwise performs the same as last year, what margin will it earn this year? (Round your percentage answer to 1 decimal place (i.e., 0.1234 should be entered as 12.3).) Margin % 8. If the company pursues the investment opportunity and otherwise performs the same as last year, what turnover will it earn this year? (Round your answer to 2 decimal places.) Turnover 9. If the company pursues the investment opportunity and otherwise performs the same as last year, what ROI will it earn this year? (Do not round intermediate calculations. Round your percentage answer to 1 decimal place (i.e., 0.1234 should be considered as 12.3).) ROI