This will almost certainly lead to a zero value:
(2 / ((1000 * (Level * 1250))
if level
is non-zero, 1000 * (Level * 1250)
, is much larger than 2, which in integer division will give the result zero.
Maybe you want to use a floating point value so that your EXPTNL becomes a floating point calculation, and then make it an integer at the end.
I also expect (Level * 1250) * 1000 * 1000 to oveflow a 32-bit integer, so you probably want that as a floating point calculation.
Just make each of the 1250 values into a 1250.0 and problem solved.