Since the Australian dollar is both the local and the functional currency, use the current rate method.
When using the current rate method, all assets and liabilities are translated at the current rate. Total assets = 1530/3 = 510 and accounts payable = 210/3 = 70. The common stock is translated at the historical rate on the date of purchase = 720/2 = 360. Beginning retained earnings = 0, so ending retained earnings = translated net income = 240. The cumulative translation adjustment is the plug figure that makes the balance sheet balance = 510 − 70 − 360 − 240 = -160
