The cost of inventories includes all necessary expenditures and charges for bringing the inventory to a stable, useable and marketable condition and location. Inventories are recorded at cost, and cost is determined using the weighted-average method. The production overhead is allocated based on the normal capacity of the production facilities. Inventories are measured at the lower of cost or net realizable value. Net realizable value for raw materials is based on replacement cost. Net realizable value for finished goods and work in process is calculated based on the estimated selling price less all estimated costs of completion and necessary selling costs.
