In its most recent financial statements Driver Enterprises reported total debt of $286 million and total assets of $453 million. Using footnote data and a discount rate of 6.5%, you have calculated the present value of its future lease obligations to be $97 million. What would be the debt ratio of the firm after incorporating the valuation of the lease obligations? Present your answer in percentage terms, rounded to one decimal place, e.g, 23.4%