The most recent financial data for Ocean Movers, Inc. is:

please provide formula as well!!

Sales $19,700 Costs 15,250 Taxes 1,513 Net income 2,937 Current assets 3,018 Fixed assets 18,282 Current liabilities 2,940 Long-term debt 7,600 Equity 10,760

Assets, costs, and current liabilities are proportional to sales. Long-term debt and equity are not. The company maintains a constant 50 percent dividend payout ratio. Next year's sales are projected to increase by 7 percent. What is the external financing need if the firm is currently operating at full capacity?