SPI Calculation
Find the SPI and deduce whether the project is behind or ahead of schedule.
  • You have a project to be completed in 12 months and the cost of the project is 100,000 USD. Six months have passed and 60,000 USD has been spent, but on closer review, you find that only 40% of the work has been completed so far.
  • Actual Cost (AC) = 60,000 USD 
  • Planned Value (PV) = 50% of 100,000 = 50,000 USD
  • Earned Value (EV) = 40% of 100,000 = 40,000 USD
FormulaMeaning
SPI<1.0Project is behind schedule

SPI=1.0

Project is on schedule
SPI>1.0Project is ahead of schedule
Transcript

Solution:

SPI = EV / PV

  • SPI= 40,000 / 50,000
  • SPI = 0.8
  • The project is behind schedule.