Tiffany invested $725 at the end of every month in an investment fund that was earning interest at a rate of 4.74% compounded monthly. She stopped making regular deposits at the end of 10 years when the interest rate changed to 6.69% compounded quarterly. However, she let the money grow in this investment fund for the next 2 years.

Question

Tiffany invested $725 at the end of every month in an investment fund that was earning interest at a rate of 4.74% compounded monthly. She stopped making regular deposits at the end of 10 years when the interest rate changed to 6.69% compounded quarterly. However, she let the money grow in this investment fund for the next 2 years.
a. Calculate the accumulated balance in her investment fund at the end of 10 years.