Are you asking for a value in today's economy?
A fixed exchange rate, sometimes called a pegged exchange rate, is also referred to as the Tag of particular Rate, which is a type of exchange rate regime where a currency's value is fixed against the value of another single currency, to a basket of other currencies, or to another measure of value, such as gold.
A fixed exchange rate is usually used to stabilize the value of a currency against the currency it is pegged to. This makes trade and investments between the two countries easier and more predictable and is especially useful for small economies in which external trade forms a large part of their GDP.
Par value, in finance and accounting, means stated value or face value. From this come the expressions at par (at the par value), over par (over par value) and under par (under par value).
A bond selling at par is priced at 100% of face value. Par is also used to refer to its original issue value or its value upon redemption at maturity. This amount is typically $1000 per bond.
The United States dollar (sign: $; code: USD; also abbreviated US$), is referred to as the U.S. dollar or American dollar. It is the official currency of the United States and its overseas territories. It is divided into 100 smaller units called cents.
Finance is the allocation of assets and liabilities over time under conditions of certainty and uncertainty. A key point in finance is the time value of money, which states that a unit of currency today is worth more than the same unit of currency tomorrow. Finance aims to price assets based on their risk level, and expected rate of return. Finance can be broken into three different sub categories: public finance, corporate finance and personal finance.