It's pretty easy to do some math on this.

There are pseudonymous background music artists who have just released one or two tracks, and who have more listens than famous bands with a 30-year history, because they were featured in one of Spotify's background music playlists. It is of course rumours that this music is commissioned by Spotify (which they deny) or that they get kickbacks in some other form.

You don't get exact numbers (because Spotify won't share them!) but there's no question background music is vastly more profitable on Spotify than the kind of music people go to concerts for, and it's at the latter's expense.