Problem $8-3$ Bond Yields

Asaburn Corporation issued $20-$year bonds $2$ years ago at a coupon rate of $6\mathrm{.}4$ percent. The bonds make semiannual payments. If these bonds currently sell for $110$ percent of par value, what is the YTM$?($Do not round intermediate calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.)$

YTM

$\%$