Discounts percentage can be applied individually against the material item when creating a Quote/Sales.
Or in bulk via price levels:
Set up price levels
Bulk update price levels
Have a look at similar frequently asked questions or visit our FAQs page for more information
Why does the Unit cost need to changed?
How can customers submit a feature request for the Tidy application?
I buy and sell in USD for some customers, but when setting up a new material item, I can't select USD. Why is that?
Can customers filter by Tracking Categories in Advanced Search?
Can you use the same contact for both a supplier and a customer?