In: Finance
You start saving $1,000 at the end of this year and increase your
saving by 2% every year for 21 years. Your account earns 15%. How
much will you have in your account in 21 years?
P[(1+r)^n - (1+g)^n] / (r-g)
here,
P = 1000
r=15%=>0.15.
g=2%=>0.02.
n=21
=>1000*[(1.15)^21 -(1.02)^21]/(0.15-0.02)
=>1000*[17.3058517/0.13]
=>1000*133.121936
=>$133,121.94.