Harrison, Inc., has the following book value balance sheet: Assets Total Debt and Equity Current assets $ 130,000,000 Total debt $ 220,000,000 Equity Common stock $ 40,000,000 Capital surplus 75,000,000 Net fixed assets 325,000,000 Accumulated retained earnings 120,000,000 Total shareholders' equity $ 235,000,000 Total assets $ 455,000,000 Total debt and shareholders' equity $ 455,000,000 a. What is the debt-equity ratio based on book values? (Do not round intermediate calculations and round your answer to 3 decimal places, e.g., 32.161.) b. Suppose the market value of the company's debt is $221.5 million and the market value of equity is $675 million. What is the debt-equity ratio based on market values? (Do not round intermediate calculations and round your answer to 3 decimal places, e.g., 32.161.)