- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 10 Jan 2020
Cost performance index (CPI)
CPI = EV / AC = 20,000 / 12,000 = 1.66
If the ratio has a value higher than 1 then it indicates the project is performing well against the budget. A CPI of 1 means that the project is performing on budget. A CPI of less than 1 means that the project is over budget.
 Find out more
 Related articles on Designing Buildings Wiki
Featured articles and news
A lighthouse history from Eddystone to Fastnet. Book review.
Telling the story of the Government Code and Cipher School.
Are you an experienced writer with a practical understanding of the industry?
Hagia Sophia, Istanbul.
New Dwelling House at Grange View.
The causes of sinkholes.
The growth of megacities.
The restoration of Big Ben
Improving fire-safety design with computer modelling.
Sound insulation testing.
Making commercial property more efficient.
SF6 is at the heart of the electrical industry.
Caring for graves and memorials at 23,000 locations.
A return to historical forms and local identities. Book review.
Black water recycling.