It's 4%, AKA the Go Fuck Yourself Post.

[Lorake]

We both know you're full of shit. That does not make sense. You copy/pasted a linear equation when you should have googled an exponential equation. Think about it. Give it up already, you fail.

http://en.wikipedia.org/wiki/Linear_equation

If X and Y confuse the shit out of you, I can just use (X1) and (X2) notation for variables. Sorry I come from a level of math where you can have a ton of variables and you describe functions of variables as F(variables).

Wonder how long it took you to look up linear and exponential equations. Did you Wiki a strat?