Weighted Average Cost of Capital: Meaning, Formula, Example

Weighted Average Expense of Capital (WACC) is specified as the weighted average of the expense of numerous sources of finance, weight being the marketplace value of each source of finance impressive.

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Weighted Average Cost of Capital: Meaning, Formula

What does WACC Mean?

Here cost of various sources suggests the return expected by the respective investors.

CIMA specifies the WACC as “the average expense of business’s financing (equity, debenture, bank loans, and so on) weighted according to the percentage each component bears to the total pool of capital, weightage is normally based upon market assessments, existing yields and expenses after tax.”

Generally, optimum capital structure is presumed at a point where WACC is minimum. For job assessment, this WACC is considered as the minimum rate of return needed from the job to settle the expected return of the investors respectively, and as such WACC is usually referred to as the required rate of return. Accordingly, the relative worth of a project is identified utilizing this required rate of return as the marking down rate.


Simple WACC is computed without thinking about the effect of tax on the expense of capital. In case of geared companies, the WACC can be specified as follows:

WACC = (Cost of equity ´ % of equity) ( Cost of debt ´% of debt)


WACC can likewise be determined after considering tax shields as follows:

WACC = Ke ´ E/ (D E) ( 1-T) ´ Kd ´D/( D E)

Where Ke is cost of equity


Kd is expense of financial obligation,

E is market value of equity capital,

D is market worth of financial obligation,

In easy way it can be given as

WACC=( Expense of equity ´% of

equity) [Cost of debt (1-tax rate) ´  % of debt]

We do the exact same since we get tax benefit of interest paid on loans.

Let us think about the estimation of WACC with the aid of an example.
For example, a company’s monetary data reveals the following:

  • Equity = Rs. 800,000
  • Debt = Rs. 200,000
  • Ke = 12.5%
  • Kd = 6%
  • Tax rate = 30%

To discover WACC, go into the worths into the above equation and resolve:

WACC = [{800,000 / (800,000 + 200,000)} 0.125)] [{200000 / (800,000 + 200,000)} 0.06 (1 – 0.3)]

WACC = 0.1 .0084 = 0.

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