Exchange Ratio is the percentage of a number of units (units being think of as the currency) that are in a currency versus the total amount of that currency. It is represented in terms of the exchange rate that applies to a particular unit of currency with another unit of the same currency. It is calculated as the ratio of the amount of the currency that is in an exchange to the total amount of currency in the exchange. For example, dollars are trading at $1.052, or 1,052 dollars.The exchange ratio is the ratio between the value of two assets. For example, two cars with a difference of $1000 may have the same number of miles on each car (1000 miles on one car, 1000 miles on the other), but the exchange ratio of the cars will differ as the vehicles will have different values to their owners. It is also important to understand that there are many different exchange ratios, such as the stock markets exchange ratio, an exchange ratio between two currencies, and even the exchange between a company and its shareholders.