Lei Corporation has bonds on the market with $16\mathrm{.}5$ years to maturity, a YTM of $7\mathrm{.}7$ percent, a par value of $$1,000,$ and a current price of $$1,065.$ The bonds make semiannual payments. What must the coupon rate be on these bonds? $($Do not round intermediate calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.)$

Coupon rate

$\%$