Applying a discount to a quotation line
You can add a discount to the upfront price of an item that has been added to a quotation.
Click on the item name.
Enter the discount amount.
The original and discounted price will be shown on the quotation:
Visibility of service upfront cost and discount
Here we can see another discounted line in the finance report (quotation and sales order) as well as profit breakdown and report:
Service upfront cost in price book
The default upfront cost of a service can be set in the price book: