Calculate the yield to maturity (i.e., YTM) for the following bond. The bond matures in 28 years, has a coupon rate of 8.0% with semi-annual payments. The par value of the bond is $1000, while the current market value equals $1030.61. (Round to 100th of a percent and enter your answer as a percentage, e.g., 12.34 for 12.34%)