2.15.) At the end of one day a clearing house member is long 100 contracts, and the settlement price is $50,000 per contract. The original margin is S2,000 per contract. On the following day the member becomes responsible for clearing an additional 20 long contracts, entered into at a price of $51,000 per contract. The settlement price at the end of this day is S50,200. How much does the member have to add to its margin account with the exchange clearing house