Canyon Tours showed the following components of working capital last year Beginning Accounts receivable $23.300 Inventory 10,300 Accounts payable 15,200 End of Year $19.000 14,200 18.000 a. What was the change in net working capital during the year? (Use the minus sign to enter negative changes, if any.) ANWC b. If sales were 534 100 and costs were $28,600. what was cash flow for the year? Ignore taxes (Use the minus sign to enter negative changes, if any.) Cash flow