David purchased a $20-$year bond with a $$1,000$ face value and an $8\%$ coupon $($annual payments$).$ The YTM of the bond was $10\%$ at the time of his purchase.

If David sells the bond after holding it for two years $($and after collecting the coupon in the $2$nd year$).$ At the time of the sale, the YTM of the bond is $9\%.$ What is his holding period yield?

Show your answer in $\%$ and round to two decimals $($xx$.$xx$\%).$