Overall Status with Weighted Average

Kristin Fortner

I have a project split by 8 different milestones, is there a way to add a weighted average of completion? For example Milestone A and all of the tasks under it should account for 5% of the project completion, Milestone B and all of it's tasks should account for 15%.

Lucas Rayala

Hi @Kristin Fortner, you can create a formula that will weight the completion average. Assume you have three projects with the below details. I'll use CompleteA, CompleteB, and CompleteC as a stand in for any calculation or reference you use to generate the percent complete for each of the sub-projects. Weight, below, is in reference to the weighted percentage of each individual sub-project.

Project A, Weight: 20%

Project B, Weight: 40%

Project C, Weight: 60%

The total calculated completion would then be a formula like this:

=0.2*CompleteA + 0.4*CompleteB + 0.6*CompleteC

For instance, if Projects A, B, and C were 55%, 35%, and 87% complete, respectively, the formula would resolve to:

02*0.55 + 0.4*0.35 + 0.6*0.87 = 0.772

So the overall project in this case would be 77.2% complete.

Let me know if that makes sense!