The 2017 financial statements for growth industries are presented below. income statement, 2017 sales $ 400,000 costs 250,000 ebit $ 150,000 interest expense 30,000 taxable income $ 120,000 taxes (at 35%) 42,000 net income $ 78,000 dividends $ 39,000 addition to retained earnings 39,000 balance sheet, year-end, 2017 assets liabilities current assets current liabilities cash $ 9,000 accounts payable $ 16,000 accounts receivable 14,000 total current liabilities $ 16,000 inventories 27,000 long-term debt 300,000 total current assets $ 50,000 stockholders’ equity net plant and equipment 340,000 common stock plus additional paid-in capital 15,000 retained earnings 59,000 total assets $ 390,000 total liabilities and stockholders' equity $ 390,000 sales and costs are projected to grow at 30% 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 75% 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 0.50. what is the required external financing over the next year? (enter excess cash as a negative number with a minus sign.)