# Find the final amount in the following retirement account, in which the rate of return on the account and the regular contribution change over time.

Find the final amount in the following retirement account, in which the rate of return on the account and the regular contribution change over time.

$480 per month invested at 5%, compounded monthly, for 6 years; then $582 per month invested at 7%, compounded monthly, for 6 years.

What is the amount in the account after 12 years?

(Round to the nearest dollar as needed.)