All of them. It’s kinda worked out backwards. Artist decides what profit they need, then works out the costs of their side (crew equipment hire etc) Agent then adds his fees to that. Promoter then works out their costs, local crew, venue, publicity etc and obviously chucks his 20% profit on top. Shows that aren't guaranteed sellouts will have about a 10% wiggle room in the sales, if they do sell ou then it probably be an 80/20 split between artist and promoter. It gets a bit different higher up the food chain with sponsorship and other nonsense but that’s the basics.