I want to add a field of Total before discount in quotation to customer

i’d like to show the customer in the quotation sent, the total amount of items price list rate before the discount applied .
The required field to add will be: the Sum of items price list rates in the quotation

For List item total amount we already have a field called “total” in quotation. This field stores value which is automatically calculated by the system considering the line items and their amount.

Now to show the same field to your customer you have to create a new print format for Quotation and simple drag and drop required field, remove any field that is not required.