What is commission in resale?
Commission refers to the percentage of a sale that one party retains as compensation. The term is used loosely and its exact meaning depends on context.
In a consignment store, commission usually refers to the store’s share of the sale — the portion the store keeps after paying out the consignor. You'll likely hear commission used more frequently in a vendor mall context where it typically refers to the percentage the mall takes from each vendor’s sales in addition to booth rent.
Because the word can be used to refer to either the consignor portion or the store portion, it's worth double-checking exactly how it's being used when you hear it.