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7. Solving for the WACC The weighted average cost of capital (WACC) is used as the discount rate to evaluate various capital budgeting projects. However, it is important to realize that the WACC is an appropriate discount rate only for a project of average risk Consider the case of Tumbull Company Turbul Company has a target capital structure of 59% debt, 6% preferred stock and 36% common equity. It has a before-tax cost of debt of 11.10%, and its cost of preferred stock is 12.20%. Df Turnbull can raise all of its equity capital from retained earnings, its cost of common equity will be 14.70%. However, if it is necessary to raise neus common equity, it will carry a cost of 16.80%. If its current tax rate is 40%. Tumbull's weighted average cost of capital (WACC) will be captal by issuing few common stock instead of raising the funds through retained earnings. higher if it has to raise additional common equity Turnbul Company is considering project that requires an initial investment of $570,000.00. The firm will raise the 5570,000.00 in capital by fasuing $230,000.00 of debt at a before a cost of 9.60%. $20,000.00 of preferred stock at a cost of 10.70% and $320.000.00 of equity at a cost of 13.504. The firm faces a tax rate of 40%. The WACC for this project is