Using the Du Pont method, evaluate the effects of the following relationships for the Butters Corporation. a. Butters Corporation has a profit margin of 7 percent and its return on assets (investment) is 13 percent. What is its assets turnover? (Round your answer to 2 decimal places.) b. If the Butters Corporation has a debt-to-total-assets ratio of 40.00 percent, what would the firms return on equity be? (Input your answer as a percent rounded to 2 decimal places.) c. What would happen to return on equity if the debt-to-total-assets ratio decreased to 30.00 percent? (Input your answer as a percent rounded to 2 decimal places.)