There are services on-line their prices vary and some unsafe they require investigation on seding for return purchase. Physical options banks that deal with foriegn currency, coin collection shops, travel agencies and even eBay. Some credit card services offer exchanges such as member programs one example is American Express for currently traded currency. International hub Airports too accept "currently" traded currency.
There are individuals that collect currency especially European currency made obsolete via the new currency The Euro. You will not retain much value till it reaches a 100 years value. Most are looking for pristine bills towards encasing and vaulting for a future investment. Just as confederate buffs collect confederate monies produced for a limited time.
If the currency you have is no longer actively used such as european, USSR or ect in the recent 20 years it is still common and the market flooded it's a matter of coin shops and old currency dealers again looking for pristine bills or unique rare features to encase and vault for future investment. Unfortunately most already house supplies direct via these countries last prints even uncut sheets at a highvalue. Your best option is research the bills in question and may find best source whom to deal.
Often common bills no longer exchanged that are recent flood in the market is best sold on ebay or etsy: where buyers either collect for various reasons and even re-sellers as supplies: country, nations, investment or recycle into paper Scrapbooking. There are even crafters that collect currency for creating novelty items such as lampshades, decopage cash boxes or poster art.
If not worth the shipping cost towards exchange of the value you invested return then again looktowards paper collections buyers for re-manufactured or recycled products production - even some artists exchange too will swap a finished art piece for new art materials. You can even try a recycling this holiday season in paper craft or etc gift giving real but unusable currency after all shredded $100 bills in clear glass Christmas ornaments or shreded mache ball ornaments have been marketed for the past 20 years. As an ornament gift save money and same time give a gift that truly expressed you went the distance to give.
Foreign exchange market
it has to do with all the money exchanged between countries
A wide variety of foreign money is exchanged. It really depends on what currency is being used, and how much of that currency is being used, and the value of that particular currency.
foreign currency just refers to the money used in other countries. For instance, in America, Chinese money is foreign currency.
currency is subject to price fluctuation. A company could lose money if the value of the foreign currency is reduced before it can be exchanged into the desired currency
Money can be exchanged for goods or services.
Goods are physical objects that can be exchanged.
goods and services
The currency can be exchanged for more of a foreign currency.
Yes, a lease can be valid even if no money is exchanged, as long as there is a mutual agreement between the parties involved regarding the terms and conditions of the lease.
PRICE
Yes, if we evolve past greed