i want to change the currency of a single ledger on tally 72

With globalization opening up the gates for trade and businesses across seas, we find many organizations have transactions in more than one currency. Such overseas transactions have to be recorded either in the base (home) currency or in the foreign currency.div /divdivIf we record the transactions in home currency, then the rate at which the foreign currency is exchanged should be recorded as well. Owing to nature of transaction, at times we need to record the transaction in the foreign currency itself to maintain the balance of the concerned account in foreign currency./div