Direct answer

Calculate CV, SV, CPI, SPI, and a CPI-based EAC while learning what each earned value result means and which assumptions limit the forecast.

What to know

  • Use consistent units for all inputs.
  • Validate zero and negative values before dividing.
  • State the forecasting assumption before using an output for a decision.
  • Reconcile calculator results with the approved project data date and baseline.

How to apply it

Enter current, controlled project data. Review the formula and model limits before communicating the result, and retain the input values with the analysis.

Formula

CV = EV − AC; SV = EV − PV; CPI = EV ÷ AC; SPI = EV ÷ PV; EAC = BAC ÷ CPI.

Worked example

With PV 100,000, EV 90,000, AC 95,000, and BAC 500,000: CV is −5,000, SV is −10,000, CPI is 0.947, SPI is 0.900, and EAC is about 527,778.

Common mistakes

  • Mixing currencies or data dates.
  • Reporting excessive decimal precision.
  • Treating one formula as a guaranteed forecast.

Exam and practice connection

PMP questions can test both calculation and interpretation. Read the wording and identify the requested metric before calculating.