Assume that your father is now 50 years old, plans to retire in 10 years, and expects to live for 25 years after he retires - that is, until age 85. He wants his first retirement payment to have the same purchasing power at the time he retires as $40,000 has today. He wants all his subsequent retirement payments to be equal to his first retirement payment. (Do not let the retirement payments grow with inflation: Your father realizes that if inflation occurs the real value of his retirement income will decline year by year after he retires). His retirement income will begin the day he retires, 10 years from today, and he will then receive 24 additional annual payments. Inflation is expected to be 4% per year from today forward. He currently has $75,000 saved and expects to earn a return on his savings of 6% per year with annual compounding.

Please correct the formulas:

Required Annuity Payments
Father's current age	50
Number of years until retirement	10
Number of years living in retirement	25
1st retirement payment, same purchasing power today as	$40,000
Inflation rate	4.00%
Current savings at t = 0	$75,000
Percentage return earned	6.00%
Step 1. Calculate retirement payments, beginning at t = 10		Formulas
Fixed retirement payments	$59,209.77	=-FV(B8,B4,0,B7)
Step 2. Calculate the value of current savings at t = 10
Value of current savings, 10 years from today	$134,313.58	=-FV(B10,B4,0,B9)
Step 3. Calculate the value of the annuity due of retirement payments at t = 10
Value of annuity due	$1,819,996.99	=-PV(B10,B5,B16,0,1)
Step 4. Calculate the net amount that must be accumulated at t = 10 to receive desired retirement payments
Net amount needed in 10 years	$1,685,683.42	=B19-B16
Step 5. Calculate the value of annual deposit needed to meet desired retirement goal
Value of annual deposit to meet retirement goal	$127,889.36	=-PMT(B10,B4,0,B22)