Check my work Required intormation [The following information applies to the questions displayed below. Westerville Company reported the following results from last year's operations: Part 11 of 15 Sales Variable expenses Contribution margin Fixed expenses Net operating income 1,500,000 530,000 970,000 670,000 $300,000 0.66 points Average operating assets937,500 eBook Print At the beginning of this year, the company has a $212,500 investment opportunity with the following cost and revenue characteristics: Sales Contribution margin ratio Fixed expenses $340,000 70% of sales 187,000 The company's minimum required rate of return is 10%. 11. What is last year's residual income