Know the answer, wondering the steps/logic behind it.

On Monday morning you sell one June T-bond futures contract at 97:27, that is, for $97, 843.75. The contract's face value is $100,000. The initial margin requirement is $2, 700, and the maintenance margin requirement is $2,000 per contract. Use the following price data to answer the following questions. The cumulative rate of return on your investment after Wednesday is a ___ 2.6% loss 79.9% loss 53.9% loss 33% gain