You find the following corporate bond quotes. To calculate the number of years until maturity, assume that it is currently January $15,2022.$ The bonds have a par value of $$2,000$ and semiannu coupons.

$\backslash$table$[[$Company $($Ticker$),$Coupon,Maturity,Last Price,Last Yield$],[$Xenon$,$ Incorporated $($XIC$),7\mathrm{.}100,$January $15,2040,94\mathrm{.}387,??],[$Kenny Corporation $($KCC$),7\mathrm{.}290,$January $15,2034,??,6\mathrm{.}36],[$Williams Company $($WICO$),??,$January $15,2036,94\mathrm{.}905,7\mathrm{.}18]]$

What is the coupon rate for the Williams Company bond?

Note: Do not round intermediate calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.$

Answer is complete but not entirely correct.

Coupon rate

$6\mathrm{.}49\%$