Platinum is trading at a one-year futures price of $833 per troy ounce. A futures contract comprises 50 troy ounces. The initial margin is $10,413 and the maintenance margin is $6,664. You are short one futures contract. There is a margin call when the price per troy ounce of platinum changes to: $772$817$917$881 Question 17 An investor enters into a long position in 20 gold futures contracts at a futures price of $1,000/0z and closes out the position at a price of $1,020 /oz. If one gold futures contract is for 50 ounces, what are the investor's total gains or losses? $400$20$20,000$1,000