Challenge 24. Suppose that XTel currently is selling at $40 per share. You buy 500 shares using $15,000 of your own money, borrowing the remainder of the purchase price from your broker. The rate on the margin loan is 8%. (LO 34) a. What is the percentage increase in the net worth of your brokerage account if the price of XTel immediately changes to (i) $44; (ii) $40; (iii) $36? What is the relation- ship between your percentage return and the percentage change in the price of XTel? h If the maintenance margin is 25%, how low can XTel's price fall before you get a margin call? c. How would your answer to (b) change if you had financed the initial purchase with only $10,000 of your own money? What is the rate of return on your margined position (assuming again that you invest $15,000 of your own money) if XTel is selling after one year at (i) $44; (ii) $40; (ii) $36? What is the relationship between your percentage return and the percentage change in the price of XTel? Assume that XTel pays no dividends. d. e. Continue to assume that a year has passed. How low can XTel's price fall before you get a margin call