Question

In: Finance

You are trying to decide how much to save for retirement. Assume you plan to save...

You are trying to decide how much to save for retirement. Assume you plan to save $8,000 per year with the first investment made one year from now. You think you can earn 5.5​%

per year on your investments and you plan to retire in 32 ​years, immediately after making your last $8,000 investment.

a. How much will you have in your retirement account on the day you​ retire?

b.​ If, instead of investing $8,000 per​ year, you wanted to make one​ lump-sum investment today for your retirement that will result in the same retirement​ saving, how much would that lump sum need to​ be?

c. If you hope to live for 19 years in​ retirement, how much can you withdraw every year in retirement​ (starting one year after​ retirement) so that you will just exhaust your savings with the 19th withdrawal​ (assume your savings will continue to earn 5.5​% in​ retirement)?

d.​ If, instead, you decide to withdraw $132,000 per year in retirement​ (again with the first withdrawal one year after​ retiring), how many years will it take until you exhaust your​ savings? (Use​ trial-and-error, a financial​ calculator: solve for​ "N", or​ Excel: function​ NPER)

e. Assuming the most you can afford to save is $1,600 per​ year, but you want to retire with $1,000,000 in your investment​ account, how high of a return do you need to earn on your​ investments? (Use​ trial-and-error, a financial​ calculator: solve for the interest​ rate, or​ Excel: function​ RATE)

Solutions

Expert Solution

a) Annual Saving = 8000, Arte 5.5%, No of periods=32

You need to calculate how much you hace after 32 yer ai.e. future value of all you savings.

Put value in finacial calculator(texas ba 2) as N=32, I/R= 5.5, PV=0, PMT=8000 compute FV = 661419.98

So you will have 661,420 Approx after 32 years.

b) Instead of 8000, Lumpsump payment to get 614420 value.

You need to do dicounting and bring back 661420, 32 years.Like

= 119,233.59 is Lumpsum amount required to invest.

c) To live 19 year in retirement, Need to calculate annual withdrals to exhaust amount 661420.

Put value in financial calculator as N=19, I/Y=5.5, PV= 661420, FV=0 Compute PMT = 56981.37

Annual withdrawl required= 56981.37

d) Now witdraw 132000 annual, How many year it took to exhaust 661420.

Put values = I/Y= 5.5, PV= 661420, PMT= - 132000, FV=0, Compute N= 6.022 years.

e) Annual Saving= 1600, Years = 32, Amount required = 1000000 Calculate Rate

Put values as N=32, PV=0, PMT= -1600, FV = 1000000 compute I/Y = 15.37%

15.37% rate of interest required.


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