Below is a screenshot of a hypothetical investment that pays seven annual cash flows, with each payment equal to $100. In order to calculate the net present value of the investment, an analyst uses a 5% hurdle rate and calculates a value of $578.64. This compares to a non-discounted total cash flow of $700.
Essentially, an investor is saying “I am indifferent between receiving $578.64 all at once today and receiving $100 a year for 7 years.” This statement takes into account the investor’s perceived risk profile of the investment and an opportunity cost that represents what they could earn on a similar investment.
Below is an example from CFI’s financial modeling course on Amazon. As you can see in the screenshot, a financial analyst uses an estimate of Amazon’s WACC to discount its projected future cash flows back to the present.
By using the WACC to discount cash flows, the analyst is taking into account the estimated required rate of return expected by both equity and debt investors in the business.
While the calculation of discount rates and their use in financial modeling may seem scientific, there are many assumptions that are only a “best guess” about what will happen in the future.
Furthermore, only one discount rate is used at a point in time to value all future cash flows, when, in fact, interest rates and risk profiles are constantly changing in a dramatic way.
When using the WACC as a discount rate, the calculation centers around the use of a company’s beta, which is a measure of the historical volatility of returns for an investment. The historical volatility of returns is not necessarily a good measure of how risky something will be in the future.
Thank you for reading CFI’s guide to Discount Rate. To keep learning and advancing your career, the following CFI resources will be helpful: