# How is the Project Percentage Complete figure calculated?

The Project Percentage Complete figure displays on the Project Snapshot.This is derived by :

- Calculating the
**total Planned Effort**of all tasks in the project, then - Calculating the
**total Percent Complete**for all tasks (entered by users as they update their tasks). - Multiplying the
**total Planned Effort**by**total Percent Complete**to give the**Completed Effort**. - The
**Completed Effort**result is then divided by the**total Planned Effort**and multiplied by 100.

For example:

Task | Planned Effort | Percentage Complete | Completed Effort |
---|---|---|---|

Task A | 80 hours | 90% | 72 hours |

Task B | 20 hours | 90% | 18 hours |

Task C | 40 hours | 50% | 20 hours |

Task D | 20 hours | 40% | 8 hours |

Totals | 160 hours |
- | 118 hours |

Therefore 118 hours / 160 hours x 100 = 73.75% Project Percent Complete

**Note**: Changes to a task percentage complete will be reflected immediately on the Project Snapshot.

**Milestones**

Milestones affect the percent complete total as follows, if the project has:

- no tasks and at least one incomplete milestone then the project percent complete = 0%
- no tasks and only complete milestones then the project percent complete = 100%
- tasks that are all 100% complete but there is at least one incomplete milestone then the project percent complete = 99%