historical exchange rate. Definition. In accounting, the exchange rate of a currency at the time an asset was acquired or a liability was incurred. In currency trading, the average exchange rate of a currency pair such as the dollar and the euro over a standard period such as 100 days or one year.What is yuan currency?
Yuan (currency) The yuan (/juːˈɑːn, -æn/; sign: ¥; Chinese: 元; pinyin: yuán; [ɥæ̌n] ( listen)) is the base unit of a number of former and present-day currencies in Chinese.