Chamberlain Co$.$ wants to issue new $16-$year bonds for some much$-$needed expansion projects. The company currently has $8$ percent coupon bonds on the market that sell for $$1,065,$ make semiannual payments, and mature in $16$ years.

What coupon rate should the company set on its new bonds if it wants them to sell at par? $($Do not round intermediate calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.)$