XYZ Company has a cash balance of 10,000 and an accounts receivable balance of 6,000. Their accounts payable balance is 11,000 and the company incurred research and development expenses during the year of 3,000 which have already been paid. Their inventory balance is 2,500. Calculate the working capital. (Answer in whole $s with no comma or $ sign needed, e.g. xxxxx or 12500)