This 5:06 minute video clearly and concisely introduces the average cost method for valuing inventory for entities that use a perpetual inventory system. It is the 3rd in a series of 4 videos on Inventory Valuation located at:
The author assumes users will have viewed these videos, otherwise context is required for the video to make sense. Information is accurate, current, and relevant and provides an example based on an Excel spreadsheet. The comparison provided for results achieved using FIFO and LIFO is good.