Last year Yu Xiu purchased a $$1,000$ face value corporate bond with a $7\%$ annual coupon rate and a $30-$year maturity. At the time of the purchase, it had an expected yield to maturity of $8\mathrm{.}46\%.$ If Yu Xiu sold the bond today for $$928\mathrm{.}90,$ what rate of return would she have earned for the past year? Do not round intermediate calculations. Round your answer to two decimal places