Does the Customer see the price I paid ?

Does the Customer see how much I paid for the product? I ask because when I place an order and then go and view the Invoice, the Invoice shows the Company Information and prices for that company but not mine...How do I change this? I do not want to have any third party information or pricing etc being sent to my Customers. It creates so many issues and this has happened to me on CJ previously and I am being told that I cant do anything about it without much information as to why..HELP....Thank you