QUESTION 3 At the beginning of the year, a company had current assets of $47,800 and current liabilities of $39,600. At the end of the year, the current assets are $51,180 and the current liabilities are $46,800. What is the change in net working capital? O -$2,420 -$3,120 -$3,820 -$4,520 -$5,220 QUESTION 4. A company has total sales of $11688, costs are $7,660, and depreciation is $740. The tax rate is 25 percent. The interest expense is $320. What is the operating cash flow? 4770