In period 1, a firm had sales of $1, 600, cost of goods sold of $1,000, depreciation of $340, interest of $50, and dividends of $20. Also in period 1, fixed assets increased by $80 and net working capital increased by $90. The tax rate is 20%. No equity was issued or retired.
1. Find operating cash flow
2. Find the change in long-term debt.