Powershell and regex matching all instances within % sign

I am trying to match off of a string that would look like the following: %replaceme%pathfolder%match2%file.ps1

I want to be able to match anything that is within “%…%”. I was trying to match with something like the following:

$varToReplace -match '%S+%' 

But this will then return %replaceme%pathfolder%match2%

How do I match to anytime something appears within percentage signs?