"Round down"

I see what you did there, Hazzy.

Fiel, I've been using the following function to floor numbers:
function floor0(number) {
return Math.floor(number*Math.pow(10,0))/Math.pow(10,0);
}
But what do you do when you've got several places this needs to be enacted? For example, this is my Total LUK formula for MS calculations:

tLUKres = floor0((parseInt(inputbLUK)*maple_warrior) + (parseInt(inputbLUK)*(maple_warrior-1)*luk_percent));}

the way I see it, I'd have to calculate everything individually with new variables like this:

a_luk = floor0(parseInt(inputbLUK)*maple_warrior)
b_luk = floor0(parseInt(inputbLUK)*(maple_warrior-1)*luk_percent)

tLUKres = a_luk + b_luk

would that be the best way?

Thank you in advance.