The T-Bond future with maturity date March 2021 was quoted 113.25 (% of face value, 100 bonds per contract) today on Chicago Board of Trade (CBT). The margin requirements from the clearinghouse are: initial margin 11%; maintenance margin 5%. Bank of America just took a short position on this future contract at the price.

1) What is the initial deposit for the long position? If the future price is 114.75 in May 2020, what would be the balance of Bank of Americas margin account?

2) If future price is 109.75 in May 2020, what is the return rate on Bank of Americas initial deposit?

3) At what future price would Bank of America get a margin call?