What is the sustainable growth rate for the company?

Douglass Enterprises Income Statement for the Present Year Sales Costs Taxable Income Taxes Net Income Dividends Addition to ret. earnings $4,840 $4,120 $ 720 $ 245 $ 475 $ 190 $ 285 Douglass Enterprises Balance Sheet for the Present Year Cash Accounts rec Inventory Current assets Fixed assets $1,010 Accounts payable $ 302 Notes payable $ 361 Current liabilities $1,673 Long-term debt $5,200 Common stock Retained earnings $6,873 Total liabilities & equity $ 536 $1,500 $2,036 $1,200 $3,000 $ 637 $6,873 Total assets