$($Related to Checkpoint $9\mathrm{.}2)($Yield to maturity$)$ The market price is $$1,050$ for a $9-$year bond $($ $$1,000$ par value$)$

that pays $11$ percent annual interest, but makes interest payments on a semiannual basis $(5\mathrm{.}5$ percent semiannually$).$

What is the bond's yield to maturity?

The bond's yield to maturity is

$\%.($Round to two decimal places.$)$