can you answer this question for me please ?

The margin requirement on the S\&P 500 futures contract is 16%, and the stock index is currently 1,500 . Each contract has a multiplier of $50. Required: a. How much margin must be put up for each contract sold? \$. b. If the futures price falls by 1% to 1,485 , what will happen to the margin account of an investor who holds one contract? (Negative value should be indicated by a minus sign.) Margin account will change by what amount: $. c-1. What will be the investor's percentage return based on the amount put up as margin? (Negative value should be indicated by a minus sign. Round your answer to 2 decimal places.) 36 c-2. What would be the current cash balance in the margin account