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 $67928 and holds it for 1 year if the bond's yield to maturity at the end of the year is 12% ? Note: Do not round intermediate colculations. Enter your answer as a percent rounded to 2 decimal places. Negative amount should be indicoted by a minus sign