Check my work The following information applies to the questions displayed below.J Westerville Company reported the following results from last year's operations: Part 1 of 15 Sales Variable expenses Contribution margin Fixed expenses Net operating income s 1,500,000 530,000 970,000 670,000 $ 300,000 .66 oints Average operating ats 937,500 03:19:24 At the beginning of this year, the company has a $212,500 investment opportunity with the following cost and revenue characteristics: eBook Print 340,000 Sales contribution margin ratio Fixed expenses 70% of sales References 187,000 The company's minimum required rate of return is 10%. Required: 1. What is last year's margin? 1%