Andre's Dog House had current assets of $68550 and current liabilities of $70624 last year. This year, the current assets are $83162 and the current liabilities are $77987. The depreciation expense for the past year is $9995 and the interest paid is $8709. What is the amount of the change in net working capital? Do not use $ or commas in your answer; round to nearest whole dollar (Example: 1234 or -1234)