Barnes Appliances had net sales for $10 million dollars, net earnings for $450,000 dollars, total assets for $4 million dollars and total equity for $2 million dollars. With this information answer the next questions:

a) What is the profit margin?

b) What is the return on assets?

c) What is the return on equity?

d) At the present time, the debt to assets ratio is 50%. If this changes to 60%, What is the new return on equity? To answer this question, use the DuPont formula.