The multiplier for a futures contract on a certain stock market index is $250. The maturity of the contract is one year, the current level of the index is 1,500, and the risk-free interest rate is 0.2% per month. The dividend yield on the index is 0.1% per month. Suppose that after one month, the stock index is at 1,533. Find the cash flow from the mark-to-market proceeds on the contract.