When translating foreign operation into the presentation currency of the group, the assets and liabilities are translated at year end exchange rate, the current year result is translated at transaction rate or at average rate for practice expedited. All exchange different will be accounted for to other comprehensive income and in translation reserve.
Therefore, the current year translation difference will be the:
1) the opening net assets at last year end rate and current year end rate
2) the current year profit at current transaction/ average rate and year end rate.
Retained earnings will stated at historical exchange rate.