(Profitability analysis) The R. M. Smithers Corporation earned an operating profit margin of 11.4 percent based on sales of $10.8 million and total assets of $4.8 million last year. a. What was Smithers' total asset turnover ratio? in sales.) c. What was Smithers' operating return on assets last year? Assuming the firm's operating profit margin remains the same, what will the operating return on assets be next year if the total asset turnover goal is achieved