Do not use excel please, show work

Short Position Name: Date: Suppose that an investor sells 400 shares short at S50 per share. The initial margin is 50% and the maintenance margin is 30%. After 125 days, the investor purchases the shares for S40 and closes the short position. During the holding period, the shares paid a dividend of $2.50 per share. Show the calculations for the numbers that you enter in the "T" accounts a. Show the investor's beginning "T" account (cales here) b. At what price would the investor receive a margin call? c. Show the investor's"T account at the share price of $40. (cales, here d. What is the actual margin at a share price of $40? e. Calculate the investor's return for the 125 day holding period