Please answer and show formulas for Pretax Cost of Debt, Aftertax Cost of Debt, Cost of Equity, Cost of Preferred $,$ and WACC. Thank you so much! Given the following information for Watson Power Co$.,$ find the WACC. Assume the company$/s$ tax rate is $21$ percent.

Debt: $10,0006\mathrm{.}4$ percent coupon bonds outstanding, $$1,000$ par value, $25$ years to maturity, selling for $108$ percent of par, the bonds make semiannual payments.

Common stock: $495,000$ shares outstanding, selling for $$63$ per share; the beta is $1\mathrm{.}15.$

Preferred stock: $35,000$ shares of $3\mathrm{.}5$ percent preferred stock outstanding, currently selling for $$72$ per share.

Market. $7$ percent market risk premium and $3\mathrm{.}2$ percent risk$-$free rate. Market Value of Debt $=10,800,000,$ Market Value of Equity $=31,185,000,$ Market Value of Preferred $=2,520,000,$ Market Value of Firm $=44,505,000,$ Market Value Weight of Debt $=0\mathrm{.}2427,$ Market Value of Weight Equity $=0\mathrm{.}7007,$ Market Value of Weight Preferred $=0\mathrm{.}0566.$