From a quick Google search, the average monthly remote salary in Europe is reportedly $5.3k - $6.9k[1]. That translates to $63.6k - $82.8k. I can't verify these numbers, of course.
[1] https://dynamitejobs.com/continent/remote-jobs-in-europe
[1] https://dynamitejobs.com/continent/remote-jobs-in-europe