There’s no magic figure as it depends on where you are based and what facilities are provided.
It’s up to the renter and owner to negotiate something that works for them.
I rent a chair in a brow bar for £150 a week and not really coming out with a lot at the end of the week. I provide all my own stock and have to stick to the salon’s prices and frowned upon if I want to leave earlier than the salon closing times, even if I have no more clients.