Required information [The following information applies to the questions displayed below.] Westerville Company reported the following results from last year's operations: At the beginning of this year, the company has a $300,000 investment opportunity with the following cost and revenue characteristics: The company's minimum required rate of return is 15%. Required: 1. What is last year's margin? 2. What is last year's turnover? (Round your answer to 1 decimal place.) 3. What is last year's return on investment (ROI)? 4. What is the margin related to this year's investment opportunity? 5. What is the turnover related to this year's investment opportunity? (Round your answer to 1 decimal place.)