Canyon Tours showed the following components of working capital last year:

	Beginning	End of Year
Accounts receivable	$27,000	$24,500
Inventory	13,500	15,500
Accounts payable	16,000	19,500

a.	What was the change in net working capital during the year? (A negative amount should be indicated by a minus sign.)

Change in net working capital

$

b.	If sales were $37,500 and costs were $25,500, what was cash flow for the year? Ignore taxes.

Cash flow

$