What does the moving average method calculate?

The moving average method calculates the average price of stock items over time, which helps in smoothing out price fluctuations and providing a more accurate representation of inventory costs. This method involves continuously updating the average as new inventory prices come in, allowing for a dynamic view of inventory valuation.

By averaging the costs over a specified period, businesses can better reflect the ongoing expenses associated with acquiring inventory, especially in environments where price variations are frequent. This approach is particularly useful for managing inventory costs effectively, as it aids in decision-making related to pricing and purchasing strategies. Consequently, option C accurately represents the function and purpose of the moving average method in inventory management.