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How to Calculate IRR With Initial Outlay and Single Cash Flow

By Motley Fool Staff – Updated Apr 30, 2025 at 4:53 PM

Key Points

  • IRR measures the rate needed to break even on an investment.
  • Calculate IRR by setting NPV to zero and solving for the discount rate.
  • Use Excel's IRR function by inputting initial cost and cash inflow.
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