This field indicates how the price is handled when the item in the trigger code field is added.
 The options are: 
Empty - The normal item price is used unless a specific price is set in the Amount /Percent field.
 The price may be zero if the item is an item modifier and the recipe it modifies allows a certain number
 of items to be added free of charge (recipe free of charge modifiers). 
Always Charge  - The normal item price is used unless a specific price is set in the Amount/Percent field. The item does not count towards the recipe free of charge
 modifiers. 
No Charge - Zero price is always used. Amount/Percent field shows 0. The item does not count towards the recipe free of charge modifiers.