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Weighted average cost of capital

Weighted average cost of capital

01/July/2025 00:46    Share:   

Weighted Average Cost of Capital (WACC)

What is WACC?

The Weighted Average Cost of Capital (WACC) is the average rate of return a company is expected to pay to all its security holders (equity, debt, and preference) to finance its assets. It represents the company's blended cost of capital, considering the proportion and cost of each component.

Importance of WACC

  • Acts as a hurdle rate for investment decisions (used in NPV, IRR).
  • Helps in determining the valuation of a company.
  • Used in capital budgeting to compare return vs cost.
  • A tool for financial performance and risk analysis.

WACC Formula

The formula for WACC is:

WACC = (E/V × Ke) + (D/V × Kd × (1 - T)) + (P/V × Kp)

Where:

  • E = Market value of Equity
  • D = Market value of Debt
  • P = Market value of Preference Share Capital
  • V = Total Capital (E + D + P)
  • Ke = Cost of Equity
  • Kd = Cost of Debt
  • Kp = Cost of Preference Shares
  • T = Tax Rate

Steps to Calculate WACC

  1. Calculate the market value of equity, debt, and preference capital.
  2. Compute the cost of each component (Ke, Kd, Kp).
  3. Calculate the proportion of each component (E/V, D/V, P/V).
  4. Apply the formula to get WACC.

Example: WACC Calculation

Assume the following capital structure:

Source Amount (₹) Cost (%)
Equity 5,00,000 14%
Debt 3,00,000 10%
Preference Shares 2,00,000 9%
Tax Rate 30%

Total Capital (V) = 5,00,000 + 3,00,000 + 2,00,000 = ₹10,00,000

WACC =

(5,00,000 / 10,00,000 × 14%) + (3,00,000 / 10,00,000 × 10% × (1 - 0.30)) + (2,00,000 / 10,00,000 × 9%)
= 0.5 × 14% + 0.3 × 7% + 0.2 × 9%
= 7% + 2.1% + 1.8% = 10.9%

Interpretation: The company needs to earn at least 10.9% on its investments to satisfy its capital providers and maintain its market value.

Factors Affecting WACC

  • Interest rates in the market
  • Tax rate (affects cost of debt)
  • Risk profile of the company and industry
  • Capital structure mix (more debt reduces WACC due to tax shield)
  • Company's credit rating and financial health

Conclusion

The Weighted Average Cost of Capital (WACC) is a crucial financial metric that helps companies evaluate the cost of financing their operations through different sources. A lower WACC indicates cheaper capital, while a higher WACC signifies higher risk and cost of funds. WACC serves as a decision-making tool in investment analysis, project evaluation, and valuation of businesses.

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