The 2017 financial statements for Growth Industries are presented below.

INCOME STATEMENT, 2017Sales$270,000Costs185,000EBIT$85,000Interest expense17,000Taxable income$68,000Taxes (at 35%)23,800Net income$44,200Dividends$17,680Addition to retained earnings26,520

BALANCE SHEET, YEAR-END, 2017AssetsLiabilitiesCurrent assetsCurrent liabilitiesCash$3,000Accounts payable$10,000Accounts receivable8,000Total current liabilities$10,000Inventories29,000Long-term debt170,000Total current assets$40,000Stockholders' equityNet plant and equipment210,000Common stock plus additional paid-in capital15,000Retained earnings55,000Total assets$250,000Total liabilities and stockholders' equity$250,000

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 0.40.

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