Trying to calculate the number of years it will take for 500 to grow to 1066.81 @ 9% compounded annually
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1 Answer

start=500$, end=1066.18$, so end/start=2.13236

9%, yeer kompound

end/start=(1.09)^n yeers

log (end/start)=n*log(1.09)=n*0.03742649794062387

(end/start)=2.13236 & log(2.13236)=0.32886052719085246

thus, n=0.32886.../0.03742649...

=8.78683675 yeers
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