Unit of account L.S.D units in ratio 240:12:1. The Florentine gold florin, the French franc and the electoral rheingulden all became pounds (240 denari) of account. Units of account would often survive over 100 years despite the original coins changing composition and availability (e.g. the Castilian maravedi). A modern unit of account is the European Currency Unit, used in the European Union from 1979 to 1998; its replacement in 1999, the Euro, was also just a unit of account until the introduction of notes and coins in 2002. Unit of account is the main way of calculating a carrier or ship owner's liability
Euro Currency Index Euro Currency Index (ECX, also EURX or EXY) was launched on 13 January 2006 by the New York Board of Trade (NYBOT) and calculated back to 2001. In 2007, the IntercontinentalExchange (ICE) based in Atlanta (USA) changed the name of the stock exchange in IntercontinentalExchange The index was a ratio that compared the value of the Euro by a currency basket of five currencies: US-Dollar (31.55 percent), British Pound (30.56 percent), Japanese Yen (18.91 percent), Swiss Franc (11.13 percent) and Swedish Krona (7.85 percent). The ECX was the geometrically weighted average compared to these currencies. The formula for the calculation