The total discount percentage for the purchase order can be generated in two ways. You can type a total discount percentage in the Purchase orderdialog box, or click the Total Discountbutton in the Purchase orderdialog box to copy the total discount percentage to the Total discount %field. This requires that a total discount group is attached to the purchase order, and that a total discount agreement has been set up in the Price and Discounttable. The total discount group is copied from the vendor's base data when you create the purchase, or you can enter a total discount group yourself. For more information, see the Total discountfield.