Estonian kroon 1500 rubles to 150 krooni.) Initially, the Estonian kroon was pegged to the Deutsche Mark at a rate of 8 krooni = 1 Deutsche Mark. After the introduction of the euro the fixed exchange rate of 1.95583 DEM to EUR led to an exchange rate of 15.64664 krooni to the euro. On 28 June 2004, as Estonia joined the ERM II-system, the central parity of the Estonian kroon was revalued (by less than 0.001%) to 15.6466 krooni per euro. On 1 January 2011 the euro replaced the kroon as the official currency of Estonia. The kroon circulated alongside the euro
Indexed unit of account Indexed unit of account When a daily indexed unit of account or Daily Consumer Price Index (Daily CPI) or monetized daily indexed unit of account is used in contracts or in the Capital Maintenance in Units of Constant Purchasing Power accounting model, deferred payments and constant real value non-monetary items are indexed to the general price level in terms of a Daily Index such that changes in the inflation rate—in the case of monetary items—and the stable measuring unit assumption—in the case of constant real value non-monetary items—have no effect on the real value of these items. Non-indexed units, such