At the end of September a company has cash balance of $800, trade receivables of $12000 and trade payables of $5000. The company can sell goods costing $9000 for $17100 in October. 50% of all sales are collected in the month of sale and the remainder in the following month. All purchases are made on credit and paid during the following month. Inventory levels will remain constant during the month. General cash expenses will be $600 during October. What is the cash balance at the end of October