Suppose you want to have $800,000 for retirement in 25 years.
Your account earns 9% interest.
a) How much would you need to deposit in the account each
month?
$
b) How much interest will you earn?
$
Ans:- (a) In this part, we need to find the monthly deposit. we will use the PMT function of excel.
Rate = 9%/12, Nper = 25*12 = 300, PV = 0, FV = $800,000
Therefore the monthly deposit will be $713.57.
(b) Interest earned will be given by Amount earned - Amount Invested = $800,000 - $713.57 * 300 = $585,928.73
Note:- Amount Invested is calculated by Monthly deposit * Nper.
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