Currency is an exchange of goods and services that replaces the old barter system. In the past, the exchange between goods and services did not have a suitable basis for assessing the value of the goods and services sold. It is essentially government issued money and is an accepted form of payment. Modern money consists of paper and metal in the form of banknotes and coins. Alone they are meaningless. The value is provided by the client and accepted by the institutions; therefore, it is considered more stable. Countries have developed their currencies over the years based on their standard of living and cost of living