Problem 2-7 Calculating Additions to NWC [LO4] The 2017 balance sheet of Dream, Inc., showed current assets of $4,530 and current liabilities of $2,830. The 2018 balance sheet showed current assets of $3,200 and current liabilities of $1,650. What was the company's 2018 change in net working capital, or NWC? (Do not round intermediate calculations. A negative answer should be indicated by a minus sign.) Change in NWC