The 2019 financial statements for Growth Industries are presented below.

INCOME STATEMENT, 2019
Sales				$	280,000
Costs					190,000
EBIT				$	90,000
Interest expense					18,000
Taxable income				$	72,000
Taxes (at 21%)					15,120
Net income				$	56,880
Dividends	$	28,440
Addition to retained earnings	$	28,440

BALANCE SHEET, YEAR-END, 2019
Assets					Liabilities
Current assets					Current liabilities
Cash	$	4,000			Accounts payable	$	11,000
Accounts receivable		9,000			Total current liabilities	$	11,000
Inventories		37,000			Long-term debt		180,000
Total current assets	$	50,000			Stockholders equity
Net plant and equipment		220,000			Common stock plus additional paid-in capital		15,000
					Retained earnings		64,000
Total assets	$	270,000			Total liabilities plus stockholders' equity	$	270,000

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 0.50.

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