Remembering Earned Value Formulae

Here is a way to remember at least 4 of the formulae.

Step 1

Write down each value (Cost Variance, Schedule Variance,

Cost Performance Index, Schedule Performance Index)

• CV
• SV
• CPI
• SPI
  

Step 2

Fill in the equal sign and EV

• CV=EV
• SV=EV
• CPI=EV
• SPI=EV
  

Step 3

Fill in the operands.  Two minus (-) and two divide (/)

• CV=EV-
• SV=EV-
• CPI=EV/
• SPI=EV/

Step 4

Fill in the last variable.  AC-PV-AC-PV

• CV=EV-AC
• SV=EV-PV
• CPI=EV/AC
• SPI=EV/PV
  

Hope this helps,

Raj