SambaPOS makes cost calculation according to selected date ranges. Between selected date’s current inventory is reported under the item, cost, sales price and rate columns.

Tracking Inventory Items; after creating recipes for desired products and making inventory purchases, the cost generates automatically. In SambaPOS, there is no need to include % rates about losts.
(This period should be adjusted according to how closely the items are supposed to be tracked. It should be daily for valuable items, and a few days for other items. So that it gives more successful results when calculating the clarified  cost of products.