The price of an S&P 500 Index futures contract is $988.26 when you decide to enter a long position. When the position is closed the futures price is $930.32. If there are no settlement requirements, what is your percentage gain or loss under a 15.0% margin requirement? (Ignore opportunity costs.)
A) 39% gain
B) 39% loss
C) 43% gain
D) 43% loss