1. An investor opens a long futures position in 3 contracts for platinum at a delivery price of $1.999 per oz. The size of one futures contract is 100 units. At the end of the first day of trading, the delivery prices of the contract settled at $2.000. On the second day, the delivery price settled at $1.993. On the third day, the price settled at $1.981. What is the total gain/loss in their margin account over the three days (assuming a margin call cannot be triggered)?