A sale is the exchange of a commodity for money or service in return for money or the action of selling something.
The seller or the provider of the goods or services completes a sale in response to an acquisition, an appropriation or a request. There is a a passing of title (property or ownership) of the item, and the settlement of a price. A seller agrees upon a price which he willingly gives ownership of the item. The seller, not the purchaser generally executes the sale and it is completed prior to the obligation of payment..