Weighted average looks at the weighted average cost of items remaining in inventory at the time of an associated sale, which yields a figure that can then be used to value ending inventory and the related cost of goods sold.
· GAAP andIFRS contrast in how they handle inventory valuation, too. Three methods thatcompanies use to value inventory are FIFO (First in First Out), LIFO (Last inFirst Out), and weighted inventory.
· FIFOstands for First in First Out. This inventory valuation method follows thenatural flow of inventory, assuming that the first items in inventory are thefirst sold.
· LIFO, orLast in First Out, takes the opposite approach of FIFO. Under this method, thelast items to arrive in inventory are assumed to be the first sold.
In the US, under GAAP, all these approaches to inventory valuation are permitted, while IFRS allows for the FIFO and weighted average methods to be used, but not LIFO.