please answer the two blanks

Calculating Average Operating Assets, Margin, Turnover, and Return on Investment East Mullett Manufacturing earned operating income last year as shown in the following income statement: Sales $531,250 Cost of goods sold 280,000 Gross margin $251,250 Selling and administrative expense 186,700 Operating Income $64,550 Less: Income taxes (@40%) 25,820 Net income $38,730 At 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 425,000 2 Margin (round to two decimal places) 3. Turnover (round to two decimal places) 1.25 4. Return on Investment (round to one decimal place)