The margin requirement on the JSE-ALSI futures contract is 10%, and the index is currently selling for R750 per share. Each contract comprises of 500 shares. Required a. How much margin must be put up for each contract sold? (4 marks) b. If the futures price falls by 1% to R742.50 on Day 1 , determine the balance in the margin account at the end of Day 1 for an investor who has a long position in one contract? (6 marks)