Wells fargo &co is a clearing house member located in San Franciso.it is currently long 1600 contracts, and the settlement price is 47,000per contract. the original margin is 2500 per contact.On the following day the member becomes responsible for clearing an additional 17 long contracts, entered at a price of 32000 per contract. the settlement price at the end of this day is 27,300.how much docs the member have to add to its margin account with the exchange clearing house