The most recent financial statements for Zoso, Inc., are shown here (assuming no income taxes):
Income Statement Balance Sheet
Sales $6,300 Assets $18,300 Debt $12,400
Costs 3,890 Equity 5,900
Net income
$2,410
Total
$18,300
Total
$18,300
Assets and costs are proportional to sales. Debt and equity are not. No dividends are paid. Next year's sales are projected to be $7,434. The external financing needed is $______.