Suppose you purchase a platinum futures contract with a price of $912.20 per ounce and the exchange date is in the next week. At the time you enter the futures contract, the price of platinum is at $913.20. On the exchange date, the spot price of platinum is at $911.70 and you have not closed out your futures contract. Given the terms of the futures contract you are in, what price do you pay per ounce of platinum on the exchange date (under the contract)?