Cost or Market Whichever is Lower--Inventory Valuation:
American costing tradition follows the
practice of pricing year-end inventories at cost or market, whichever is
lower (lower of cost or market). This departure from any experienced
cost basis is generally defined on the grounds of conservatism. A more
logical justification for
cost or market inventory valuation is that a full stock is necessary
to expedite production and sales. If physical deterioration, obsolescence,
and price declines occur, or if stock when finally utilized cannot be
expected to realize its stated cost plus a normal profit margin, the
reduction in inventory value is an additional cost of the goods produced
and sold during the period when the decline in value occurred.
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