The most recent financial statements for Williamson, Inc., are shown here (assuming no income taxes): Income Statement Balance Sheet Sales $ 7,300 Assets $ 20,500 Debt $ 8,000 Costs 4,880 Equity 12,500 Net income $ 2,420 Total $ 20,500 Total $ 20,500 Assets and costs are proportional to sales. Debt and equity are not. No dividends are paid. Next years sales are projected to be $8,541. What is the external financing needed? (Do not round intermediate calculations and round your answer to the nearest whole number, e.g., 32.)