Night Hawk Co. issued 15-year bonds two years ago at a coupon rate of 9.9 percent. The bonds make semiannual payments. Required: If these bonds currently sell for 99 percent of par value, what is the YTM? (Do not include the percent sign (%). Enter rounded answer as directed, but do not use the rounded numbers in intermediate calculations. Round your answer to 2 decimal places (e.g., 32.16).) Yield to maturity %