Last year Janet purchased a $$1,000$ face$-$value corporate bond with an $8\%$ annual coupon rate and a $15-$year maturity. At the time of the purchase, it had an expected yield to maturity of $10\mathrm{.}45\%.$ If Janet sold the bond today for $$820\mathrm{.}17,$ what rate of return would she have earned for the past year?