MSProject all subtasks are at 100% but task only 99% complete?

[Helen]

I have a task with 9 sub-tasks all of which are marked 100% complete but the
task shows only 99% complete. All but one of the tasks have a tick next to
them to show they are complete but the task with no tick still shows 100%. I
have tried to re-enter them all as 100%, tried removing a dependency, there
are no resources attached to this sub-task.

Any ideas?

 

[John]

I have a task with 9 sub-tasks all of which are marked 100% complete but the
task shows only 99% complete. All but one of the tasks have a tick next to
them to show they are complete but the task with no tick still shows 100%. I
have tried to re-enter them all as 100%, tried removing a dependency, there
are no resources attached to this sub-task.

Any ideas?

Helen,
This seemingly ironic condition is not all that uncommon. There can be
various reasons why the summary percent complete doesn't seem to gibe
with the subtasks. You'll just have to do a little investigating.

To troubleshoot, display the Actual Finish field. Do all subtasks have a
date (i.e. non-NA)? If one doesn't, find out why. Or, display the Actual
Duration field. Percent complete for a summary line is calculated by
Project as the sum of actual durations for all subtasks divided by the
sum of durations for all subtasks, converted to percent. Either of the
above should help point to the subtask that is causing the condition.

Hope this helps.
John
Project MVP

 

[Dean C]

Display the actual finish date, actual work and work fields and verify that
there is an actual finish date for all tasks and no work listed for the
summary task (or at thesummary level, the value equals the sum of the
subtasks. If at some time, you had a resource assigned to what is now the
summary task, there can be hours at the summary level even if the resource is
deleted. If you can delete or modify work at the summary level, make the
value corrrect.