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Modified IRR (MIRR) fixes IRR's reinvestment rate assumption by using explicit finance/reinvestment rates; often more realistic.

Водич чекор-по-чекор

  1. 1Input cash flows, finance rate (for negative CF), reinvestment rate (for positive CF)
  2. 2Calculate MIRR
  3. 3Compare to regular IRR

Worked Examples

Влез
Standard IRR 25%, but reinvestment at 10%
Резултат
MIRR ≈ 18% (more realistic)
Avoids unrealistic assumptions

Common Mistakes to Avoid

  • Using same rate for finance and reinvestment
  • Not reflecting realistic opportunity costs

Frequently Asked Questions

Should I always use MIRR?

Yes if assumptions reasonable; more realistic than IRR for most projects.

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