<human>:  How does currency exchange work?
<bot>: Currency exchange is the process of converting one currency into another. It can be done at a bank, a money exchange office, or through an online money transfer service. The exchange rate for each currency is determined by the forces of supply and demand in the market, and it can be affected by economic and political conditions. The amount of money exchanged for each currency is based on the current exchange rate. Generally, the higher the exchange rate, the more of the foreign currency you will receive in exchange for your own currency.