The Bulk Buying Panel

Use this section to set a discount if a customer purchases more than 1 of this product. Select from the dropdown menu how you would like this product to be referred to (e.g. Per Product, Per Pack etc.), and then click on the "Add Bulk Rule" button to create your bulk discounts.

The final Bulk Discount band which covers the greatest number of products will also be used for any order quantities above that.
Editing Products: Bulk Buying Panel