Once you are in the commodity pricing screen, you can click the Find button and it will open your commodity list. From this screen, choose which commodity you wish to set price levels for. After the commodity has been chosen, click the Add button and pull down a price level that you have defined in the purchase price lists screen. After selecting your price level, choose a mathematical operator from the pull down menu. These selections are a function of the standard scale price which you see in the upper right-hand portion of the screen. So, for example, if you pull down Level One price list and select the "+" operator, the price level will add 0.25CW to the current scale price for a new price of 1.90CW. These prices will automatically update if your scale price changes in the commodity master. If you wish for your price levels to begin and end at certain times on the calendar, define those dates in the beginning and ending fields.