See Also:

EBITDA Definition

Cost of Capital Funding

Arbitrage Pricing Theory

Capital Budgeting Methods

Required Rate of Return

# Discount Rate Definition

The discount rate definition, also known as hurdle rate, is a general term for any rate used in finding the present value of a future cash flow. In a discounted cash flow (DCF) model, estimate company value by discounting projected future cash flows at an interest rate. This interest rate is the discount rate which reflects the perceived riskiness of the cash flows.

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## Discount Rate Explanation

Using discount rate, explained as the risk factor for a given investment, has many benefits. The purpose is to account for the loss of economic efficiency of an investor due to risk. Investors use this rate because it provides a way to account and compensate for their risk when choosing an investment. Furthermore, this provides, with each choice, a buffer to provide for the chance of failure in an investment over time as well as many investments over a portfolio. Though risk is somewhat of a sunk cost, still include it to add a real-world element to financial calculations. It is a measure used to prevent one from becoming “calculator rich” without actually increasing personal wealth.

In DCF model, there are two methods to get discount rate: weighted average cost of capital (WACC) and adjusted present value (APV). For WACC, calculate discount rate for leveraged equity using the capital asset pricing model (CAPM). Whereas for APV, all equity firms calculate the discount rate, present value, and all else.

The Discount Rate should be consistent with the cash flow being discounted. For cash flow to equity, use the cost of equity. For cash flow to firm, use the cost of capital.

## Discount Rate Formula

A succinct Discount Rate formula does not exist; however, it is included in the discounted cash flow analysis and is the result of studying the riskiness of the given type of investment. The two following formulas provide a discount rate:

First, there is the following Weighted Average Cost of Capital formula.

Weighted Average Cost of Capital (WACC) = E/V * C_{e} + D/V * C_{d} * (1-T)

Where:

E = Value of equity

D = Value of debt

C_{e} = Cost of equity

C_{d} = Cost of debt

V = D + E

T = Tax rate

Then, there is the following Adjusted Present Value formula.

Adjusted Present Value = NPV + PV of the impact of financing

Where:

NPV = Net Present Value

PV = Present Value

### Calculation

See the following calculation of WACC and APV.

For WACC:

WACC = $10,000/$20,000 * $2,000 + $10,000/$20,000 * $1,000 * (1-.3) = $1,050,000

If:

E = $10,000

D = $10,000

C_{e} = $2,000

C_{d} = $1,000

V = $20,000

T = 30%

For APV:

APV = $1,000,000 + $50,000 = $1,050,000

If:

NPV = $1,000,000

PV of the impact of financing = $50,000

## Discount Rate Example

For example, Donna is an analyst for an entrepreneur. Where her boss is the visionary, Donna performs the calculations necessary to find whether a new venture is a good decision or not. She does not need a **discount rate calculator** because she has the skills to provide value above and beyond this. Donna is the right hand woman to the entrepreneur which she aspires to be. But she first needs to prove herself in the professional world.

Donna’s boss wants to know how much risk he has taken on his last venture. He would like, eventually, to find the **discount rate business valuation** to judge levels for performance and new ventures alike.

Donna’s boss gives Donna the financial information she needs for one venture. She finds the **discount rate (risk)** using the following equation:

WACC = $10,000/$20,000 * $2,000 + $10,000/$20,000 * $1,000 * (1-.3) = $1,050,000

If:

E = $10,000

D = $10,000

C_{e} = $2,000

C_{d} = $1,000

V = $20,000

T = 30%

Next, Donna’s boss has her find the discount rate for another venture that he is involved in. The results are below:

Adjusted Present Value = NPV + PV of the impact of financing

Where:

NPV = Net Present Value

PV = Present Value

Donna appreciates her experience with her employer. As a result, she is sure that with this experience she can find the path to mentor another just like her.