Andre's Dog House had current assets of $71,200 and current liabilities of $71,100 last year. This year, the current assets are $82,600 and the current liabilities are $85,100. The depreciation expense for the past year is $9,600 and the interest paid is $8,700. What is the amount of net working capital last year?

Group of answer choices

$100

$2,800

-$1,400

-$2,800

$2,100