Cách sử dụng
The expression "mark up" means to increase the price of something or add additional cost to a product. It is commonly used in a business setting, such as when a retailer adds their own margin to the cost of a product before selling it to customers. For example, if a store buys a shirt for $5 and marks it up by 50%, they would sell it for $7.50. It can also refer to adding comments or edits to a document or piece of writing.