the company i am looking at is proctor and gamble. 2020 year

(4) Compute Weighted Average Cost of Capital (WACC) (35 points)

- Estimate the firms before-tax and after-tax component cost of debt; (Note: If the information about the current corporate tax rate is not available, you estimate the tax rate based on the historical tax payments).

- Estimate the firm's component cost of preferred stock if the firm has issued preferred stocks.

- Use three approaches (CAPM, DCF, bond-field-plus-risk-premium) to estimate the component cost of common equity for the firm.

- Calculate the firm's weighted average cost of capital (WACC) using the market-based capital structure weights.