You are bullish on Telecom stock. The current market price is $$240$ per share, and you have $$24,000$ of your own to invest. You borrow an additional $$24,000$ from your broker at an interest rate of $9\%$ per year and invest $$48,000$ in the stock.

a$.$ What will be your rate of return if the price of Telecom stock goes down by $9\%$ 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 return $$

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.$)$

$\backslash$table$[[$Margin call will be made at price,or lower$]]$