Below is a list of main EVM equations.
| Acronym | Name | Equations | |
| Variances | |||
| CV | Cost Variance | = BCWP – ACWP = EV – AC = (CV /BCWP) *100 |
|
| CV% | Cost Variance % | = (EV – AC) / EV = (BCWP – ACWP) / BCWP |
|
| SV | Schedule Variance | = BCWP–BCWS = EV – PV = (SV /BCWS) *100 |
|
| SV% | Schedule Variance % | = (EV – PV) / PV = (BCWP – BCWS) / BCWS |
|
| VAR | Variance at Completion | = BAC – EAC | |
| Overall Status | |||
| % Scheduled | = PVcum / BAC = BCWScum / BAC |
||
| % Complete | = EVcum / BAC = BCWPcum / BAC |
||
| % Budget Spent | = ACcum / BAC = ACWPcum / BAC |
||
| WR | Work Remaining | = BAC – EVcum = BAC – BCWPcum |
|
| Performance Index | |||
| CPI | Cost Performance Index | = EV / AC = BCWP / ACWP |
|
| SPI | Schedule Performance Index | = EV / PV = BCWP / BCWS |
|
| TCPIBAC | To Complete Performance Index | = WR / (BAC – ACWPcum) (Total Budget – EV ) / (Total Budget – AC) |
|
| TCPIEAC | To Complete Performance Index | = WR / (EAC – ACWPcum) = (Total Budget – BCWP ) / ( Total Budget – ACWP) = (BAC – BCWPCUM) / (EAC – ACWPCUM) |
|
| Estimate at Completion | |||
| EAC | Estimate at Completion | = BAC / CPIcum = ACWP + ETC = ACWP + (BAC – BCWP) / (CPI x SPI) |
|
| EACCPI | Estimate at Completion – Critical Performance Index | = ACcum + WR / CPIcum | |
| EACComposite | Estimate at Completion – Composite |
= ACcum + WR / (CPIcum ∙ SPIcum) | |
| Critical Path Length Index | |||
| CPLI | Critical Path Length Index | = (CP Length(Time Now To Contract End)) + Total Float (To Contract End Baseline Finish)) /CP Length | |
| Baseline Execution Index | |||
| BEI | Baseline Execution Index | = Tasks with Actual Finish Date / (# of Baseline Tasks Scheduled to Finish Prior to Status Date +Tasks Missing Baseline Start or Finish Date) | |
| DoD TRIPWIRE METRICS | |||
| CPI | Cost Efficiency | = BCWP / ACWP; Favorable is > 1.0, Unfavorable is < 1.0 | |
| SPI | Schedule Efficiency | = BCWP / BCWS; Favorable is > 1.0, Unfavorable is < 1.0 | |
The Defense Acquisition University (DAU) list five (5) main EVM variables:
- BCWS = Budgeted Cost of Work Scheduled
- BCWP = Budgeted Cost of Work Performed
- ACWP = Actual Cost of Work Performed
- BAC = Budget at Completion
- EAC = Estimate at Completion
AcqLinks and References:
- Defense Acquisition Guidebook (DAG)
- DoD Earned Value Management Interpretation Guide – Jan 2018
- EVM Contract Requirements Checklist
- DAU EVM Gold Card
- DOE EVMS Gold Card
- Website: Cost Performance Index Equation Formulas Calculator
- Website: DoD EVMS Home Page
Updated: 6/15/2018
