Calculate weighted average cost of capital (WACC), cost of debt, and cost of equity for investment analysis and business valuation.
Cost of capital is the minimum rate of return that a company must earn on its investments to maintain its market value and attract funds. It represents the opportunity cost of using capital for a specific project rather than investing it elsewhere.
The weighted average cost of capital (WACC) is the most commonly used measure, combining the cost of debt and cost of equity in proportion to their respective weights in the company's capital structure.
The WACC formula combines the cost of debt and cost of equity, weighted by their respective proportions in the capital structure:
WACC = (E/V × Re) + (D/V × Rd × (1 - T))
Where:
The Capital Asset Pricing Model (CAPM) is commonly used to calculate the cost of equity:
Re = Rf + β × (Rm - Rf)
Where:
Use current market data and ensure all inputs reflect the company's actual capital structure and market conditions.
Recalculate WACC regularly as market conditions, interest rates, and company risk profiles change over time.
Test different scenarios and assumptions to understand how changes in key variables affect the cost of capital.
Compare your calculated WACC with industry benchmarks to validate reasonableness and identify potential issues.
