Skip to content
Institute for Economics

Net Present Value (NPV)

Evaluate the profitability of an investment by discounting future cash flows to their present value.

NPV ($)

The Mathematics of DCF

The core formula is NPV = ∑ [Rt / (1+i)^t] - C0. If NPV > 0, the investment theoretically yields value above the cost of capital.

A common mistake is using a static discount rate across decades without adjusting for varying inflation expectations or risk premiums.