Answer:
$641,455.26
Step-by-step explanation:
Calculation to determine the value of your retirement plan after 40 years
First step is to determine FV Using financial calculator
N = 40*12 = 480
I = 8%/12 = .6667
PV = 0,
PMT = $150
CPT FV =$523,651.17
N = 20*12 = 240
I = 8%/12 = .6667
PV = 0
PMT = $200 ($350 - $150)
CPT FV =$117,804.08
Now let determine the value of your retirement plan after 40 years
Sum of FV =$523,651.17+$117,804.08
Sum of FV =$641,455.26
Therefore the value of your retirement plan after 40 years will be $641,455.26