A trader has a short position of 10 contracts in a crude oil futures contract. Yesterday's closing price was $55.30/barrel. The initial margin is $3,375 per contract and the maintenance margin level is $2500 per contract. The trader's current margin balance is $28,000. If the closing price today is $57, will the investor be required to deposit money into the margin account. If a deposit is required, how much money must the trader deposit into the margin account