Currency pair euro has strengthened, or both. On the other hand, if the EUR/USD (or EURUSD) quote changes from 1.2500 to 1.2490 the euro has become relatively weaker than the dollar. The rules for formulating standard currency pair notations result from accepted priorities attributed to each currency. From its inception in 1999 and as stipulated by the European Central Bank, the euro has first precedence as a base currency. Therefore, all currency pairs involving it should use it as their base, listed first. For example, the US dollar and euro exchange rate is identified as EUR/USD. Although there is no standards-setting body
Euro Currency Index was 34.38805726 multiplied by the product of all components in the basket of currencies, that have been raised to a high number of their percentage, weighting equal to: ECX = 34.38805726 x (EURUSD^(0.3155) x EURGBP^(0.3056) x EURJPY^(0.1891) x EURCHF^(0.1113) x EURSEK^(0.0785)) The all-time low was constructed on 6 July 2001, with 83.36 points and the all-time high on July 14, 2008, 123.82 points. On 20 May 2011, the exchange ICE Futures U.S. ended the trading of futures and options on the index. On July 28, 2011, the calculation of the ICE Euro Currency Index was discontinued (last value was 108.88