Problems calculating 12 month average and Pareto percentage

[JuanBolas]

Hello,

I'm having trouble with a couple of problems with two things.

1) calculating a twelve month average of the total trips per month to add as a line graph on a visual.

2) I've setup a pareto chart that seems to have an error when calculating the cumulative percentage.

I haven't been able to figure out either one.

Please help me.

The data and reports are included in a pruned shared PBIX.

Thanks in advance

https://drive.google.com/file/d/1GaNVC5Oufq8-qmjDMaheVRdy57w1LN7E/view?usp=sharing

[lbendlin · Accepted solution]

twelve months of what? Previous months? Previous and current?  Sliding window of six previous and six next?

Attached is a proposed solution.  for breaking Pareto ties use a small random number to add to your y axis.