CPI from Earned Value and Actual Cost
Easyearned valueCPI
At a status date a project has earned value $450,000, actual cost $500,000 and planned value $480,000. The cost performance index is most nearly:
- A0.90
- B0.94
- C0.96
- D1.11
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Answer: A. 0.90
Equation: cost performance index CPI = EV/AC. Values from the status date: EV = $450k, AC = $500k (PV = $480k is not used for CPI). Step 1: CPI = 450/500 = 0.90. Below 1 means over budget. 0.94 is SPI = EV/PV; 1.11 inverts CPI; 0.96 is PV/AC.
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