Specific Cost is a method of tracking the actual, specific purchase price of any individual item of stock.
Specific Cost is usually used with either high value, low volume items because of the logistics involved with maintaining the tracking for every movement of an item, or with items that are tracked for logistical/tracking and not costing purposes. It is often used in a production environment for finished goods which have a high value or where end-user tracking is required, with batch tracking being used for the consumption of raw materials.
When using Specific Cost, every movement of an item code using this method must be accompanied with the specific serial or batch number (and therefore cost) being transacted.