Please help find the internal growth rate, substainable growth rate, and the amount of external debt needed.

The December 31, 2018 financial statements for Enviro Tech, Inc. are shown here: Sales Costs Taxable income Taxes (25%) Net Income 7,350,000 5,950,000 1,400,000 350,000 1,050,000 Total Assets 6.950.000 Interest bearing debt Equity 2,500,000 4,450,000 6.950,000 Total $_ Assets and costs are proportional to sales. Debt and equity are not. A dividend of $630,000 was paid in 2018 and Enviro Tech's policy is to keep a constant payout ratio. 2019 sales are projected to increase by 8%. REQUIRED 1. What is the internal growth rate 2. What is the sustainable growth rate 3. What is the amount of external debt needed to fund the company's expected 2019 growth? SHOW CALCULATIONS BELOW