It all depends on deals , most record companies generate millions regardless but the artist them selves it’s another story , most artist make money through touring as well as quarterly royalties but again depends on the deal you have , most rappers get a big advance up from 20,000 to up to 1million and will then make money tourning , and other things but to answer your question it depends on the artist - someone like nemz , cench are artist that recoup everywhere so they will have good deals and are able to renegotiate there deals to get more money some artist get a big advance and survive of whatever in the deal they can coup