having trouble with percentages on MS Project 2010

[charlie689]

Please help!
I am doing a mobilisation of a contract and have groups of tasks and sub groups. I can't seem to get the percentages to roll up to the sub groups or main groups correctly.

for example:-- this is what I am seeing, surely it should be 66%?

Sub Group - 28%
Task 1 - 100%
Task 2 - 100%
Task 3 - 0%

or
sub group - 99%
Task 4 - 100%
Task 5 - 100%
Task 6 - 100%

I need the sub groups not to look at dates or working days, but the work physically completed where I manuall enter for each task on a weekly/daily basis.

This is causing me issues in reporting how complete we are in the project.

Any ideas whats wrong?

Urgent help much appreciated.

Charlie

 

[SkipVought]

Hi,

I'd wager that 28% is correct, as Project is most likely calculating the total effort (man hours) for the Sub Group and the remains house for Task 3 and getting 28%. Task 3 must be a lesser effort than the average of the other 2.

 

[johnherman]

Check your tasks as to whether they are Fixed Work, Fixed Units, or Fixed Duration. Also verify the check box "Effort Driven". These will drive your percentages.

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[JulieInMaine]

A couple of points: % complete is a duration measurement - it is most certainly based on dates. % Work Complete is based upon work values - not duration values.

The % complete of the summary task is based upon the overall duration of the subtasks and their percent complete. In the second scenario - having a milestone that is not marked 100% complete will result in the summary task "stuck" at 99%.

You CAN use physical percent complete to record your more subjective % complete values. See:

https://azlav.wordpress.com/2011/09/27/rolling-up-physical-percent-complete/

for details on using physical % complete.