Suppose that Company W has a bond with a maturity of 25 years and a coupon rate of 5%. It currently sells for $1,283.62. The bond can be called in 7 years at a call price of $1,150. Coupons are paid semiannually. What is the bonds yield-to-call? [Enter your answer as a % with two decimals, such as 9.58 and not 0.0958]