Can anyone solve this in excel and show how the different columns are calculated. I can't figure it all out. Like all the numbers for each column are here but I don't understand the formulas on how they were all calculated,

Table 2.1 Operation of margin account for a long position in two gold futures contracts. The initial margin is $6,000 per contract, or $12,000 in total; the maintenance margin is $4,500 per contract, or $9,000 in total. The contract is entenance margin is $4,500 per contract, or $9,000 in total. The contract 16 at $1,226.90