RAK Co$.$wants to issue new $20-$year bonds for some much needed expansion projects. The company currently has $7$ percent coupon bonds on the market that sell for $$1,085,$ have a par value of $$1,000,$ make semiannual payments, and mature in $20$ 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$.,32\mathrm{.}16.)$