I know a guy that works for them, he told me they make 500 million a year, that's why the owner drives a Rolls, it was parked outside Exxxotica convention.
This varies quite a bit. A contractor who cannot secure any contracts doesn't make anything, while someone with a highly desirable and specialized skillset in an extended contract or series of...
It really depends on how popular said artist is. Most of the money that artists make is from either Merchandise sales or ticket sales at concerts. The average musician/band makes around $500 every...