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. $550 per month invested at 6%, compounded monthly, for 7 years, then $675 per month invested at 7%, compounded monthly, for 7 years GITT What is the amount in the account after 14 years? (Do not round until the final answer Then round to the nearest dollar as needed.)