The most recent financial statements for Bello Company are shown here: Income Statement Balance Sheet Sales $14,000 Current assets $ 30,188 Debt $29,753 Costs 8,400 Fixed assets 21,125 Equity 21,560 Taxable $5,600 Total $51,313 Total $51,313 income Taxes (23%) 1,288 Net income $ 4,312 Assets and costs are proportional to sales. Debt and equity are not. The company maintains a constant 36 percent dividend payout ratio. What is the sustainable growth rate?