Calculating Average Operating Assets, Margin, Turnover, and Return on InvestmentEast Mullett Manufacturing earned operating income last year as shown in the following income statement:Sales $531,250Cost of goods sold 280,000Gross margin $251,250Selling and administrative expense 194,000Operating income $57,250Less: Income taxes (@ 40%) 22,900 Net income $34,350At the beginning of the year, the value of operating assets was $390,000. At the end of the year, the value of operating assets was $460,000.Required:For East Mullett Manufacturing, calculate the following:1. Average operating assets $ 2. Margin (round to two decimal places) %3. Turnover (round to two decimal places) 4. Return on investment (round to one decimal place) %