41. Growth and LO3 LO 3 th and Assets A firm wishes to maintain an internal growth rate of cent and a dividend payout ratio of 40 percent. The current profit vin is 6.8 percent and the firm uses no external financing sources. What must total asset turnover be? ustainable Growth Based on the following information, calculate the sustainable growth rate for Groot, Inc.: Profit margin = 7.1% Total asset turnover = 1.90 Total debt ratio = 45 Payout ratio = 20% What is the ROA here