What is the weighted$-$average cost of capital for SKYE Corporation given the following information?

Equity shares outstanding $1$ million

Stock price per share $ $25$

Yield to maturity on debt $7\mathrm{.}68\%$

Book value of interest$-$bearing debt $$16$ million

Coupon interest rate on debt $9\%$

Interest rate on government bonds $6\%$

SKYE$$s equity beta $0\mathrm{.}75$

Historical excess return on stocks $6\mathrm{.}0\%$

Tax rate $30\%$