E QUestions displayed below] Westerville Company reported the following results from last year's operations: Sales Variable expenses Contribution margin Fixed expenses $ 1,408,000 686,000 728,880 440,808 $ 288,808 Net operating income Average operating assets $ 875 At the begining of this year, the company has a $300,000 investment opportunity with the following cost and revenue characteristics Sales Contribution nargin ratio Fixed expenses $ 488,888 80% of sales s 336,000 The company's minimum required rate of return is 4 What is the margin relted to this year's investment opportunity