You are bullish on Telecom stock. The current market price is $62 per share, and you have $6,200 of your own to invest. You borrow an additional $6,200 from your broker at an interest rate of 7.6% per year and invest $12,400 in the stock. Required: a. What will be your rate of return if the price of Telecom stock goes up by 9% during the next year? (Ignore the expected dividend.) (Round your answer to 2 decimal places.) b. How far does the price of Telecom stock have to fall for you to get a margin call if the maintenance margin is 30% ? Assume the price fall happens immediately. (Round your answer to 2 decimal places.)