Jill, before I explain to you your job description, I will explain to you the information about inventory. There are two types of inventory system - perpetual and periodic system. Under perpetual system, the company has a stock card that will keep track of the in and out of the inventory. This system is used for high volume inventories. Periodic inventory system, on the other hand, needs a physical counting at year-end to determine the cost of goods sold. But, even if perpetual inventory system keeps a stock card, physical counting is still a necessity to reduce the risk of fraud or error. Your job is to physically count the inventory of Proehl's Hardware Store. You need to verify if the records of the company about its inventory is accurate. Physical counting is used to confirm the existence of inventory.