Use Costco wholesale corporation for this task.
Find the beta for your company use: http://finance.yahoo.com/q/ks?s=AIG
Estimate your company's cost of equity.
Estimate your company's weighted-average cost of capital.
Estimate your company's unlevered cost of equity.
Show your calculations in an Excel document. Be sure to label each calculation clearly
This solution shows all of the steps required to estimate the cost of equity, WACC, and unlevered cost of equity. An Excel document is provided with the solution.