AAA Inc. had current assets of $65,000 and current liabilities of $71,000 last year. This year, the current assets are $82,600 and the current liabilities are $85,000. The depreciation expense for the past year is $9,600 and the interest paid is $8,700. What is the amount of the change in net working capital? O $3,600 O $3,600 $8,400 O -$8,400