This was posted a few months ago. I asked a question then, that I will ask now. How much money does Spotify have to pay the record label? Usually the artist gets most of their money taken by the label.
See here: http://www.salon.com/2000/06/14/love_7/ and here: http://www.techdirt.com/articles/20100712/23482610186.shtml
Record company math is very similar to movie studio math. Both systems are designed to make people very rich, just not the ones actually doing any of the work.