please help me solve this problem for SGR

The most recent financial statements for Bello Co. are shown here: Income Statement Sales Costs 14,200 $20,700 Balance Sheet $ 12,060 Debt Fixed assets 34,200 Equity Current assets $ 16,780 29,480 Taxable income $ 6,500 Total $46,260 Total $46,260 Taxes (24%) 1,560 Net income $ 4,940 Assets and costs are proportional to sales. Debt and equity are not. The company maintains a constant 40 percent dividend payout ratio. What is the sustainable growth rate? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) Sustainable growth rate 4.46 %