In 2008, a small country imported goods worth $800 billion and exported goods worth $611 billion. It exported services worth $248 billion and imported services worth $530 billion. Payments on investments abroad totaled $499 billion, while returns paid on foreign investments were $25 billion. Unilateral transfers from the country to other nations amounted to $81 billion. What was the country's merchandise trade balance for 2008? (In billions of Dollars. We are asking for the balance, where a negative balance implies a trade decit and a positive balance implies a surplus.)