With formulas, please.

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 marain Fixed expenses Net operating income $1,500,000 500,000 1,000,000 700,000 $300,000 Average operating assets $ 1,000,000 At the beginning of this year, the company has a $200,000 investment opportunity with the following cost and revenue characteristics 300,000 Sales Contribution margin ratio Fixed expenses 60% of sales 132,000 The company's minimum required rate of return is 10%. 4. What is the margin related to this year's investment opportunity? Margin 101%