You purchase 100 shares of stock at $100 ($10000); the marginrequirement is 40 p

You purchase 100 shares of stock at $100 ($10000); the marginrequirement is 40 percent. What are the dollar and percentagereturns if1. a) you sell the stock for $112 and buy the stock forcash?2. b) you sell the stock for $90 and buy the stock onmargin?3. c) you sell the stock for $60 and buy the stock onmargin?