Modern business is often observed in a complex manner. Like any organism requires a lot of elements to function correctly, a company contains some departments that play vital roles in its successful functioning. Work of these departments may be connected with finances, and if it is, then cost management becomes important for flawless functioning of such departments.

Today we would like to touch the topic which is gaining popularity among employees of big and small companies as well as students, teachers and other strata of the population.