Mark up.
Here is a sample sentence.
"These people are making a lot of money. They buy the product for a few cents but the mark up is a few dollars."
"The mark up on this items is ridiculously large."
It comes from the verb, to "mark up."
Clearly, the process of writing the price on an objected can be understood as marking the price. If the price you mark is higher, on can see how the term "mark up" would have been created.
The customer's favorite item was banned from the store due to safety concerns or violations of store policies.
The artistic sponge has meaning.
The artistic sponge has meaning.
The artistic sponge has meaning.
The artistic sponge has meaning.
The artistic sponge has meaning.
The artistic sponge has meaning.
The artistic sponge has meaning.
The artistic sponge has meaning.
The artistic sponge has meaning.
Unit Cost is what the manufacturer charges a dealer for the item. The Unit Price is what the dealer charges a customer.
A simple explanation is that the invoice shows the customer how much is owed for an item, or service performed; while a receipt shows the customer how much was paid and is proof of what was sold, or done.