There are many industries in which the cost of raw materials represent 60% or more of the cost of the finished product, the balance of 40% being divided between labour and overhead costs.
Kuna viwanda vingi ambao gharama za malighafi kuwakilisha 60% au zaidi ya gharama ya bidhaa kumaliza, urari wa 40% kugawanyika kati ya kazi na gharama za uendeshaji.