Suppose that Xtel currently is selling at $74 per share. You buy 300 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 796. a. What is the percentage increase in the net worth of your brokerage account if the price of Xtel immediately changes to: (0 $83 62 (i) S74: (i)$64.38? What is the relationship between your percentage return and the percentage change in the price of Xtel? (Leave no cells blank - be certain to enter "o" wherever required. Negative volues should be indicated by a minus sign. Round your answers to 2 decimal places.) i. Per ii. Per ili. Percentage gain gain b. If the maintenance rmargin is 25%, how low can Xtel's price fall before you get a margin call? (Round your answer to 2 decimal places.) Margin call will be made at price