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 argin Fixed expenses Net operating Encome Average operating assets At the beginning of this year, the company has a $287,500 investment opportunity with the following cost and revenue characteristics: Sales Contribution margin ratio Fixed expenses $460,000 ses of sales $161,000 The company's minimum required rate of return is 15% 4. What is the margin related to this year's investment opportunity? Margin