Source: http://www.accountz.com/glossary.html#c Definition: A formula for working out the direct costs of your stock sold over a particular period. The result represents the gross profit. The formula is: Opening stock + purchases - closing stock. Source: http://www.ventureline.com/glossary_C.asp Definition: is a figure representing the cost of buying raw material and producing finished goods. Included are precise factors, i.e. material and factory labor; as well as others that are variable, such as factory overhead.