A company's total assets amounted to $300 million at the beginning of the year and $400 million at year-end. The debt-to-equity ratio at the beginning of the year was 2 to 1. The only change in stockholders' equity during the year was the increase in retained earnings for the year's net income of $50 million. Compute the company's debt-to-equity ratio at year-end. (Round your answer to 2 decimal places.)