The following information applies to the questions displayed below Westerville Company reported the following results from last year's operations: Sales Varlable expenses Contribution margin Flxed expenses Net operating Income $ 1400,000 680,000 720,000 $280,000 Average operating assets $ 875,000 This year, the company has a $300,000 investment opportunity with the following cost and revenue characteristics: $480,000 Sales Contribution margin ratio Fixed expenses 80% of sales $336,000 The company's minimum required rate of return is 15%