How to do foreign exchange in mathematics

How to do foreign exchange maths - Articleshow to calculate exchange rate with spotlight searchhow to get the best exchange rate when traveling in a foreign countryhow to avoid paying international credit card transaction feeshow to create a currency converter with microsoft excel. The first currency listed (usd) always stands for one unit of that currency; the exchange rate shows how much of the second currency (cad) is needed to purchase that one unit of the first (usd). Example, if you want to know what the exchange rate for ,000 us to euros is, type 1000 dollars to euros in any google search bar and it will tell you the answer. The bank or currency exchange house will markup the price so they make a profit, as will credit cards and payment services providers such as paypal when a currency conversion occurs.