15) Wing Sang Ltd current sources of capital include $1,000 par value bonds that pay a coupon rate of 8.2%. These bonds will mature in 14 years' time and the current market price for the bonds is $1111. Using the approximate yield to maturity formula, calculate the before tax cost of bonds for Wing Sang Ltd. Please type your answer to 3 decimal places. For example, 9.8% should be shown as 0.098.