Mark-to-Market Stock Question:

Can you please explain where all of the numbers in this chart are coming from? Starting in column 2 with Future Price all the way down to Margin Call. Please do not comment If you are unsure of how to calculate any of the numbers.Please provide a thorough explanation.

June 5, long two gold futures contracts at $400 / oz. The initial margin is $2,000/ contract, and the maintenances margin is $1,500 / contract. The long position is closed on June 10 at $392.30 /oz. (Contract size is 100 ounces.) Day Daily Gain (loss) ($) Cumulative gain (loss) ($) Margin Call ($) June 5 June 6 June 9 June 10 Future Price ($) 400.00 397.00 393.30 387.00 388.10 (600) ( 740) (1,260) 220 ( 600) (1,340) (2,600) (2,380) Margin Acc. Balance ($) 4,000 3,400 2,660 2,740 4,220 1,340 1,260