Abstract: A method of adjusting a sales plan using information gathered from an item monitoring system. In one embodiment of the a method of adjusting a sales plan, the method comprises the steps of: providing a sales plan related to items; providing an item monitoring system, comprising: at least one sensor, wherein the sensor senses a plurality of items in a first amount of space associated with the sensor, wherein the sensor is capable of sensing both items containing metal and items containing no metal; a communications network; and a computer, wherein the computer receives information from the sensor through the communications network; gathering information from the item monitoring system during a first instance; processing the information to determine the quantity of items within the first amount of space at the first instance; and adjusting the sales plan related to items based on the information processed.