You've collected the following information about Groot, Inc.: Profit margin Total asset turnover Total debt ratio Payout ratio = 4.48% = 3.90 .21 33% = a. What is the sustainable growth rate for the company? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) b. What is the ROA? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) a. Sustainable growth rate % b. ROA %