18: You are bullish on telecom stock. The current market price is $50 per share, and you have $5,000 of your own to invest. You borrow an additional $5,000 form your broker at an interest of 8% per year and invest $10,000 in stock

How far does the price of Telecom stock have to fall for you to get margin call if the maintenance margin is 30%? Assume the price fall happens immediately?

Can you show the process for Part B, P stands for # of shares correct? Or is it an value of .3 that should be substituted? Please help