Inventory is stated at the average purchase or production cost, not exceeding the replacement cost or realizable amount, whichever is less. Imports in transit are stated at the cost of each import.
The cost of finished goods and work in progress comprises the cost of raw materials, direct labor, other direct costs and related direct production costs (based on normal capacity). The net realizable value is the estimated selling price
in the normal course of business, less the estimated costs of completion and the estimated costs necessary to make the sale.