help with accounting 2!

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 $200,000 investment opportunity with the following cost and revenue characteristics: The company's minimum required rate of return is 10%. 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)? (Round your intermediate calculations to 1 decimal place.)