Suppose that XTel currently is selling at $50 per share. You buy 800 shares using $30,000 of your own money, borrowing the remainder of the purchase price from your broker. The rate on the margin loan is 7%. a. What is the percentage increase in the net worth of your brokerage account if the price of Tel immediately changes to (a) $56; (b) $50; (c) $44? (Leave no cells blank - be certain to enter "O" wherever required. Negative values should be indicated by a minus sign. Round your answers to 2 decimal places.) % a. Percentage gain b. Percentage gain c. Percentage gain % % b. If the maintenance margin is 25%, how low can XTel's price fall before you get a margin call? (Round your answer to 2 decimal places.) Price