The 2017 financial statements for Growth Industries are presented below. INCOME STATEMENT, 2017 Sales $ 340,000 Costs 220,000 EBIT $ 120,000 Interest expense 24,000 Taxable income $ 96,000 Taxes (at 35%) 33,600 Net income $ 62,400 Dividends $ 18,720 Addition to retained earnings 43,680 BALANCE SHEET, YEAR-END, 2017 Assets Liabilities Current assets Current liabilities Cash $ 3,000 Accounts payable $ 10,000 Accounts receivable 8,000 Total current liabilities $ 10,000 Inventories 29,000 Long-term debt 240,000 Total current assets $ 40,000 Stockholders’ equity Net plant and equipment 280,000 Common stock plus additional paid-in capital 15,000 Retained earnings 55,000 Total assets $ 320,000 Total liabilities and stockholders' equity $ 320,000 Sales and costs are projected to grow at 40% a year for at least the next 4 years. Both current assets and accounts payable are projected to rise in proportion to sales. The firm is currently operating at 70% capacity, so it plans to increase fixed assets in proportion to sales. Interest expense will equal 10% of long-term debt outstanding at the start of the year. The firm will maintain a dividend payout ratio of 0.30. What is the required external financing over the next year? (Negative amounts should be indicated by a minus sign.)