The most recent financial statements for Drennan Manufacturing Co. are shown below:

Income Statement Balance Sheet

Sales $ 75,300 Current assets $ 27,000 Debt $ 37,200

Costs 55,380 Fixed assets 89,300 Equity 79,100

Taxable income $ 19,920 Total $ 116,300 Total $ 116,300

Tax (40%) 7,968

Net Income $ 11,952

Assets and costs are proportional to sales. Debt and equity are not. The company maintains a constant 25 percent dividend payout ratio. No external financing is possible.

Required: What is the internal growth rate? (Do not round intermediate calculations. Round your answer to 2 decimal places (e.g., 32.16).)

Internal growth rate. _______%

Substainable growth rate. _______%