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 two percent higher on the year, approximately at the same level as it was before the crisis kicked off in 2007. The formal titles of the currency are "euro" for the major unit and "cent" for the minor (one hundredth) unit and for official use in most eurozone languages; according to the ECB, all languages should use the same spelling for the nominative singular. This may contradict normal rules for word formation in some languages, e.g., those where there is no "eu" diphthong. Bulgaria has negotiated an exception; "euro" in the Bulgarian Cyrillic alphabet is spelled as eвро ("evro") and