Assume that you contribute $100 at the end of each month to a retirement plan for 25 years. then you incresde the contributuon to $200 at the end of each month for another 20 years. given a 6 percent interest rate, what is the value of your retirement plan after the 45 years (assume monthly compounding)

This assignment was already due, and I never figured out how to do this one. I need help so i know how to do it for the exam

Unanswered UT123 PLS Question 5 Assume that you contribute $100 at the end of each month to a retirement plan for 25 years. Then you increase the contribution to $200 at the end of each month for another 20 years. Given a 6 percent interest rate, what is the value of your retirement plan after the 45 years (assume monthly compounding)? $ 154,122.83 $ 24.952.91 $ 299,434.93 $ 391,102.75 Correct Answer $ 321,803.35