Tesla Shares are seling for $22. If you have $56,000 available to invest, what is the maximum number of shares you can buy if the intal margin is 70 percent? You invest $50,000 in Germany when the exchange rate is 0.68/S. Your investment gains 15 percent, and you subsequently exchange the euros back into dollars at a rate of 0.75/$. What is your total percentage return on this nvestment