If someone finds you commission work, what is a fair percentage to give?

India
October 25, 2006 11:37am CST
If someone finds you commission work, what is a fair percentage to give that person after a sale? I build canvases from scratch and then paint and then transport paintings. The guy that finds customers takes 50% of the sale price for finding people to buy. He doesn't do much as he has a store front and people come to him.
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