Kaiser Industries has bonds on the market making annual payments, with $18$ years to maturity, a par value of $$1,000,$ and a current price of $$1,077\mathrm{.}95.$ At this price, the bonds yield $7\mathrm{.}5$ percent. What is the coupon rate? $($Do not round intermediate calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.)$