The 2014 balance sheet of Steelo, Inc., showed current assets of $3,135 and current liabilities of $1,545. The 2015 balance sheet showed current assets of $3,100 and current liabilities of $1,545.

What was the companys 2015 change in net working capital, or NWC? (Do not round intermediate calculations. Negative amount should be indicated by a minus sign.)

Net working capital

$