[Change Request]: Implement for municipalities

[kaylawoodbury]

Background / Why This Change?

Please see details on parent task, we want the same change for municipalities as well. 🙂

What Should Be Changed?

Add % change to pie chart tool tip on municipality page

Screenshots or Visuals (optional)

No response

Urgency

Nice to have

[petterhersinger]

You can assign me this @kaylawoodbury.

If there are any problems with this solution in the future, for traceability of who wrote what.