Margin call help please with work shown

1.A T-note futures contract has a face value of $100,000, currently it is priced at 109'12. The initial margin is 1,620, and maintenance margin is $1,200. Jack longs one T-note futures contract and Kathy shorts one T-note futures contract. Three months later, the T-note futures contract price decrease to 108'14. Who will get a margin call, by how much