A bond is issued with a coupon of 6% paid annually, a maturity of 38 years, and a yield to maturity of 9%. What rate of return will be earned by an investor who purchases the bond for $679.28 and holds it for 1 year if the bond's yield to maturity at the end of the ye is 12% ? Note: Do not round intermediate calculations. Enter your answer as o percent rounded to 2 decimal places. Negotive amount should be indicated by a minus sign