nbers Calculate the after-tax real rate of return earned on $5,000 by your selected savings options over a period of three years. This will help your comparison. Remember, the real rate of return includes taxes on the interest earned and inflation. For this assignment, use a tax rate of 10% and an average cumulative rate of 3%. You will submit your calculations as part of your assignment. Need help? Check out the steps to calculate the after-tax real rate of return