An investor sells 10 futures contracts on day 1 for $ 500 each. The initial margin is 40% and the maintenance margin is 30%. If the pattern of prices is as given in the table below, work out the margin account of the investor for each day until the position is closed out on day 7. Suppose that: 1. The margin call restores the margin account to its maintenance proportion 2. Instead that the investor is obliged to restore the account to its initial proportion