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Conversion Table for Effective Annual Rate and Add-On Rate

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Create a conversion table for the effective annual rate and the add-on rate using the add-on method.
Interest Rate
%
Repayment Frequency
[ Maximum
Time,
StepsTime,
Rounding ]
Conversion formula between the effective annual rate R and the add-on rate A for monthly repayments (n is the number of repayment months)
\(\normalsize \hspace{30px}A=\large{\frac{n\times\frac{R}{12}}{1-(1+\frac{R}{12})^{-n}}}-1\)


The effective annual rate corresponds to the annual interest rate under the equal principal and interest repayment method.
Rounding rules may vary by financial institution.
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Conversion Table for Effective Annual Rate and Add-On Rate | Keisan