You are given the following information for Lighting Power Company. Assume the company's tax rate is $22$ percent.

$\backslash$table$[[$Debt:$,\backslash$table$[[22,0007\mathrm{.}1$ percent coupon bonds outstanding, $$1,000$ par value, $21],[$years to maturity, selling for $107$ percent of par; the bonds make$],[$semiannual payments.$]]],[\backslash$table$[[$Common$],[$stock:$]],550,000$ shares outstanding, selling for $$73$ per share; the beta is $1\mathrm{.}17.],[\backslash$table$[[$Preferred$],[$stock:$]],\backslash$table$[[24,500$ shares of $4\mathrm{.}9$ percent preferred stock outstanding, a $$100$ par$],[$value$,$ currently selling for $$94$ per share.$]]],[$Market:$,6$ percent market risk premium and $5\mathrm{.}2$ percent risk$-$free rate.$]]$

What is the company's WACC? $($Do not round intermediate calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.)$

$\backslash$table$[[$WACC$,7\mathrm{.}88]]$