- Interest Rate Calculation
Mathematics of Retirement Planning
Case
Current age of Mr. Shah is 30 years. His current household expenses are Rs.3,50,000 per annum. He estimates that post retirement he will need 80% of the pre-retirement expenses. Estimated inflation for his lifestyle is 6%. He wants to retire at the age of 60 years. He can invest money at 12% now and at 9% post retirement. His life expectancy is 80 years.
Investment and Growing Annuity