Conversions with PPC

I've heard many people saying that u can increase 400% conversion with PPC and then keep on increasing and they even sell their strategies

But Is this thing really true,

However in real life what I've found that after a certain limit the conversion come to a saturation point and it becomes almost impossible to increase the conversion, only thing the remains possible is that u can reduce the Cost per conversion and after some time even it becomes possible

I mean your PPC advertising comes to saturation

PS - I'm just talking about adwords

 

This video shows documented increase of 300% in PPC...it's true.

 

300% conversion in adwords?No,never.
It depends on what product you sell.Usually 2% conversion.

 

Yep, I do agrees it is possible to increase conversion by 200% to 400%, but it is just once

and then it is stagnant