What is the net effect on a firm's cash flow from changes in net working capital if a new project requires: $30,000 increase in inventory, $10,000 increase in accounts receivable, $35,000 increase in machinery, and a $20,000 increase in accounts payable?

• cash inflow $5,000
• cash outflow $10,000
• cash outflow $20,000
• cash inflow $55,000