NEED ANSWER ASAP

Your company enters into a short iron futures contract when the futures price is 50.70 cents per kilogram. The contract is for the delivery of 90,000 kilograms. How much will your firm gain or lose on the futures contract if the iron price at the end of the contract is 48.50 cents per kilogram? A) None of the options. B) $990 C) -$990 D) $1,980 E) -$1,980