Originally Posted by

**Artorius** A big thank you for the reply and its similar to the formulas that I have stared at and through for most of today:-

"For this simple type of loan you have to solve the following equation:

$\displaystyle P=\frac{MR}{(1+r/100)^{1/12}} ~

\frac{1-(1+r/100)^{(N-1)/12}}{1-(1+r/100)^{1/12}}$

Where MR is the monthly repayment, N the number of periods, r the

percentage APR, and 12 the number of periods in a year."

The bad news is that I do not have the MR and want to calculate r.

But thank you anyway, was almost saved :-)