Suppose that you buy a stock index futures contract at the opening price of 452.25 on July 1. The multiplier on the contract is 500, so the price is $500(452.25)=$226,125. You hold the position open until selling it on July 16 at the opening price of $435.50. The initial margin requirement is $9000 and the maintenance margin is $6000. Assume that you deposit the initial margin and do not withdraw the excess on any given day. Construct a table showing the charges and credits to the margin account. The daily prices on the intervening days are as follows Day settlement price 1/7 453.95 2/7 454.50 3/7 452.00 7/7 443.55 8/7 441.65 9/7 442.85 10/7 444.15 11/7 442.25 14/7 438.30 15/7 435.05 16/7 435.50