Quib's Relative DPS Calculator

[Laffs]

After much head scratching I managed to extract the page that contains the calculator and a bit later on got it to work with the UI builder, But what I realy need to know is this,

Sombody mentioned that you cant calculate the correct dps without using the "base value" as well is this true? and if so what is the complete formula for calculating the dps of a weapon? Please

EDIT

What I mean by complete formula is not how to code it but how to calculate it EG:
max dmg / min dmg - base dmg = dps

I know that is totaly wrong and was just give an idea of what info I am looking for here