In 2015, Caterpillar Inc. had about 649 million shares outstanding. Their book value was $28.3 per share, and the market price was $72.00 per share. The companys balance sheet shows that the company had $24.20 billion of long-term debt, which was currently selling near par value. What was its market debt-to-value ratio? (Do not round intermediate calculations. Enter your answer as a decimal rounded to 2 decimal places.)