.............................................................................................................................................................................................................................................................................................................................................................................................................................
We all shop on a daily cause our daily requirements. In prehistoric times shopping was considered to be swapping. Goods were exchanged additional ideas things were being required. This became a problem because from the rate of exchange. For example, what number of pots was one presupposed to barter in exchange for a goat? Google led for the introduction of greenbacks and expenses. Ever since then profit different forms has been used as payment for goods and services.