Problem $5-13$ Future Value of Multiple Annuities $($LG$5-2)$

Assume that you contribute $$340$ per month to a retirement plan for $25$ years. Then you are able to increase the contribution to $$680$ per month for another $25$ years. Given a $9\mathrm{.}0$ percent interest rate, what is the value of your retirement plan after the $50$ years?

Note: Do not round intermediate calculations and round your final answer to $2$ decimal places.

Future value of multiple annuities