Negative float in P6

Member for

17 years 1 month

I agree with Gary. Perhaps what you wanted to show are the variance of the actual dates from the baseline date. Use variance instead of floats. I am just guessing of your intention.

Member for

16 years 7 months

Activties which are complete do not have float.

Float is a measure of how much time an activity could be delayed by before delaying the project. This measure is meaningless for an activity which has already been completed, since it cannot be delayed.

 

Also please note that using must finish constraints is generally considered bad practise, as it disrupts float calculations.