I want to calculate how much I would pay monthly.
$X$ = Amount borrowed. $I$= Interest Rate. $Y$ = number of years
This is what I have so far, but it's wrong; I'm getting a larger value.
$\frac{X\left(1 + \frac{I}{100}\right)^{Y}\left(\frac{I}{Y}\right)}{12\left(\left(1 + \frac{I}{100}\right)^Y - 1\right)}.$