The Eurodollar 3-month future has a current quote of 99.815 (=100-3 mo LIBOR rate, with one-tick = 1/2 of 1% or $12.5 per tick). If you are long on a Eurodollar contract and the 3-month future price later moves to 99.800, how much do you need to deposit into the position to meet a margin call if the initial margin is $220 and the maintenance margin is $200?