Final answer:
The official Reserves Account Balance for Canada would have been -314.
Step-by-step explanation:
The official Reserves Account Balance for Canada can be calculated by subtracting the sum of the Current Account and Capital & Financial Accounts from the Balance of Payments. In this case, the Balance of Payments is +154 and the Current Account and Capital & Financial Accounts total to -160. So, the official Reserves Account Balance would be(-160) - (+154) = -314.