QUESTION 12 You decide to buy 900 shares of stock at a price of $78, making a full use of the initial margin of 70 percent prescribed by your broker. In addition, your broker would make a margin call if your existing margin is 40 percent or lower. Answer the following three questions. (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.) a. How many dollars would you borrow from your broker? Amount borrowed = b. At what price will you receive a margin call? Margin call price = $ c. What is the maximum percentage change in the stock price before you will receive a margin call? (Use a negative sign to indicate a decrease in change.) Stock price change % =