The 2017 financial statements for Growth Industries are presented below.

INCOME STATEMENT, 2017Sales$330,000Costs215,000EBIT$115,000Interest expense23,000Taxable income$92,000Taxes (at 35%)32,200Net income$59,800Dividends$35,880Addition to retained earnings23,920

BALANCE SHEET, YEAR-END, 2017AssetsLiabilitiesCurrent assetsCurrent liabilitiesCash$9,000Accounts payable$16,000Accounts receivable14,000Total current liabilities$16,000Inventories37,000Long-term debt230,000Total current assets$60,000Stockholders' equityNet plant and equipment270,000Common stock plus additional paid-in capital15,000Retained earnings69,000Total assets$330,000Total liabilities and stockholders' equity$330,000

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 0.60.

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