Andre's Dog House had current assets of $67475 and current liabilities of $70280 last year. This year, the current assets are $83571 and the current liabilities are $77533. The depreciation expense for the past year is $9870 and the interest paid is $8644. 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)