Determine the cost of capital using excel. Please show formulas.

Debt:	222,000, 7.2 percent coupon bonds are outstanding, 25 years to maturity, selling for 108 percent of par; the bonds have a $1,000 par value each and make semiannual payments.
Common:	8,000,000 shares outstanding, selling for $181.30 per share;
Tax Rate	35%
Preferred:	442,000 shares of 5 percent preferred stock outstanding, selling for $80.20 per share and having a par value of $100.
Beta:	.83
Market:	9 percent expected market risk premium; 3 percent risk-free rate.