Want to create an 'average rating' feature

I created a field that contains a ‘rating’ that a user can click between 1 and 5 stars and the field is a number. I am looking for a way to get an ‘average rating’ number per record that calculates by how all users have rated that record.

Would the ‘average rating’ be a field, or would that be created in the UI builder?

Thanks in advance!

Excellent! Thanks @louisadekoya