A bond that pays coupons annually is issued with a coupon rate of 4.1%, maturity of 25 years, and a yield to maturity of 7.1%. What rate of return will be earned by an investor who purchases the bond and holds it for 1 year if the bond’s yield to maturity at the end of the year is 8.1%? (Negative value should be indicated by a minus sign. Do not round intermediate calculations. Round your answer to 2 decimal places.)