Griffey Junior Wear has $1,000,000 in assets and $600,000 of total debt. It reports net income of $100,000. a. What is its ROA (return on assets)? (Do not round intermediate calculations. Round the final answer to 1 decimal place.) Return on assets % b. What is the return on shareholders' equity? (Do not round intermediate calculations. Round the final answer to 2 decimal places.) Return on equity % c. If the firm has an asset turnover ratio of 3.00 times, what is the profit margin? (Round the final answer to 2 decimal places.) Profit margin %