Rhiannon Corporation has bonds on the market with $21\mathrm{.}5$ years to maturity, a YTM of $6\mathrm{.}8$ percent, and a current price of $$1,045.$ The

bonds make semiannual payments.

What must the coupon rate be on these bonds? $($Do not round intermediate calculations. Round the final answer to $2$ decimal

places.$)$

Coupon rate