FINANCE, money matters; the science or conduct of monetary business or affairs. Ex. The millionaire boasted of his skill in finance.
The system by which money matters, such as of a nation, state, or corporation, are managed. Management of government revenue and expenditure is called public finance.
REFINANCING, to finance again or anew, as by arranging new terms, or borrowing to settle notes.

EXCHANGE RATES is the price of one nation's currency expressed in terms of another country's currency. An American who buys a product from a company in the United Kingdom might have to pay for it in British pounds. The American would exchange dollars for pounds at the current exchange rate. For example, if the rate were $1.25 to the pound, the American would pay $25 for a British sweater that cost 20 pounds. If Americans bought more British products, the demand for pounds would increase and the pound would rise in price against the dollar. Thus, if the pound rose to $1.50, the American would have to pay $30 for the sweater.