You just took a long position in 5 futures contracts for crude oil, at day 1 settlement price of $52 per barrel.
Each contract is for 1,000 barrels. The initial margin is $11,000 per contract, and the maintenance margin is $7,000 per contract.
The settlement price on days 2 through 8 are: $55, $50, $42, $34, $40, $43, $49.
You then decide the close the trade on day 9, at a price of $53.50. Make a table to show your margin account.