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Compound Interest
formula, variables and compound times
Question | Answer |
---|---|
compound interest | Interest on Interest |
simple interest | Interest only on principal |
Simple Interest Formula | I = P x R x T |
Compound Interest Formula | A = P (1 + r/n) to the power of (n times t) |
P | Principal, the amount deposited in the bank |
r | Interest rate written as a decimal |
t | time in years |
n | the number of times, in a year, that you get interest |
compounded quarterly | interest 4 times a year |
compounded monthly | interest 12 times a year |
compounded semi-monthly | interest 2 times a year |
compounded annually | interest 1 time each year |