The Price Quantity Discount or “PQDS” system allows you to apply quantity adjustments and or value adjustments to the Target Prices Calculated by the System. System parameters options allow you to specify which type of prices should be adjusted by the PQDS calculations. Options allow you to apply or not apply PQDS adjustments to price level, discounted price level, or contract prices. There is also a PQDS flag in each special pricing record which can be used to enable or disable PQDS adjustments for special price records (excluding rebates) on a record by record basis. The Class Discount, Quantity Adjustment, Value Adjustment and Class Exception Tables described in the next few sections are all parts of the PQDS system.