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Old 04-02-2008, 12:11 PM  
tiger
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Join Date: Apr 2002
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Quote:
Originally Posted by qxm View Post
lol good formulas............... a simple one >> I=Prt
That's simple interest.

This is compounding interest:

P = C (1 + r/n) nt

where
P = future value
C = initial deposit
r = interest rate (expressed as a fraction: eg. 0.06)
n = # of times per year interest in compounded
t = number of years invested

Change "t" for each payment and then add them all up to get the sum.
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