How Much Do Artists Make From Spotify?

Time Magazine has created an interesting Spotify earnings calculator where you can see how much major artists earn through being streamed on Spotify.  It's well worth looking at as evidence for the debate over whether streaming is really the future of music distribution. As we know Taylor Swift removed her music from Spotify, claiming that the amount paid doesn't place enough value on her music.  In the past the musician Billy Bragg has claimed that the problem isn't with how much Spotify pays per stream ($0.06 - $0.84 according to Time) but the percentage that the record company takes before the artist gets paid.