Answer:
Annual deposit= $71,428.57 per year
Explanation:
Giving the following information:
You expect to live to 100 and work until you turn 65. You estimate that you will need $100,000 per year.
Every dollar in the plan earns 7% per year.
You have just turned 22 years old.
First, we need to calculate the amount of money necessary in retirement:
Final value= 100,000*35 years= 3,500,000
Now, using the following formula, we calculate the yearly deposit needed:
FV= {A*[(1+i)^n-1]}/i
A= annual deposit
Isolating A:
A= (FV*i)/{[(1+i)^n]-1}
n= 65-22= 43
FV= 3,500,000
i=0.07
A= (3,500,000*0.07)/[(1.07^22)-1]
A= 245,000/3.43
A= 71,428.57 per year