7. Suppose you find a stock currently selling for $30 per share and you have $3,000 to invest for a one-year period. Given a margin requirement of 50%, what is the return on this investment if the price of the stock increased to $34 at the end of your one year holding period? I want the dollar return and the percentage rate return. AI a. Given the information in the above problem, suppose the stock price declined to $26 per share. What would be the dollar amount of your margin call? All