How is total duration calculated and what causes the variation between duration & total duration

rvp · #1 07-14-2021, 11:09 AM

I am fairly new to MS projects and after preparing a project plan, I was asked why was there a duration between the 2 fields i.e Duration & Total duration.

I initially assumed that the total duration field is a rolling calendar day sum but I dont think that is the case.

At a high level, my project plan has a duration of 225 days where as total duration is at 864 days.

Also This varies across the different indent tasks. Some the former is higher than the latter and its the opposite in some cases.

Please help understand what going on

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