Problem with layout qotation

Problem with layout qotation

Hello,
I use CRM to manage sales and when I do my estimate, there are two columns to the right. One with my product price, and another with the final price sold to the customer. And I'd like to have only one column with the price sold to the customer. Why?
Imagine I have a product worth 10 euros but I sell to customer X to 9 euros, while I can also sell to the customer there for 12 euros. Therefore, the customer sees that Y I increased the price. Basically, I want to see my product prices in order to know how to sell it, but it does not aparaisse in the final quote.

How?

Thank you for your help.