Formula Used By Graph

The graph above utilizes the following formula:
 Pt = ( Pt - 1 ( 1 + R ) + ( Cm 12 + ( 1 + R ) 11/24 )

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Compound Interest

The formula used was derived from the simple compound interest formula:
 Pt = Pt - y ( 1 + R ) y

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Variable Definitions

Pt - Principal by Year

R - Rate (from 0 to 1)

Cm - Contributions per Month

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