Your client is considering the purchase of a bond that is currently selling for $1058.15. The client wants to know what annual rate of return can they expect to earn on the bond. The bond has 27 years to maturity, pays a coupon rate of 7.8% (payments made semi-annually), and a face value of $1000. (Round to 100th of a percent and enter your answer as a percentage, e.g., 12.34 for 12.34%)