You are bullish on ABC stock. The current market price is $30 per share, and you have $6,000 of your own to invest. You borrow an additional $6,000 from your broker at an interest rate of 7% per year and invest $12,000 in the stock a. What will be your rate of return If the price of ABC stock goes up by 5% during the next year? The stock currently pays no dividends. (Negative value should be indicated by a minus sign. Enter your answer as a percent rounded to the nearest whole number.) Rate of retum % b. How far does the price of ABC 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.) Margin call will be made at price or lower