The 2017 financial statements for Growth Industries are presented below.

INCOME STATEMENT, 2017Sales$310,000Costs205,000EBIT$105,000Interest expense21,000Taxable income$84,000Taxes (at 35%)29,400Net income$54,600Dividends$21,840Addition to retained earnings32,760

BALANCE SHEET, YEAR-END, 2017AssetsLiabilitiesCurrent assetsCurrent liabilitiesCash$7,000Accounts payable$14,000Accounts receivable12,000Total current liabilities$14,000Inventories31,000Long-term debt210,000Total current assets$50,000Stockholders' equityNet plant and equipment250,000Common stock plus additional paid-in capital15,000Retained earnings61,000Total assets$300,000Total liabilities and stockholders' equity$300,000

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 0.40.

What is the required external financing over the next year?(Enter excess cash as a negative number with a minus sign.)