Lexington Motors had current assets of $14,700, net fixed assets of $49,700, and current liabilities of $10,400 at the beginning of the year. At the end of the year, the firm had current assets of $12,300, net fixed assets of $54,100, and current liabilities of $11,150. What is the amount of the change in net working capital for the year? $1,250 $1,050 $3,150 $5,450