Lap band...how much will I lose?

I am getting confused and hope you experts can help?  Went to a meeting last night & I heard w/a lap band you can lose up to 60% of your weight over 1-2 years.  However, my friend swears that she heard the doc say you could lose up to 60% of your EXCESS weight...for example, if you have 100 lbs to lose, you could lose 60% of that. 

Which is correct? 

 

Thanks,

Sheryl

 

Excess is what I was told. But any one can take it further if they are committed and work HARD.

It is 60% of excess weight...So if you are 100lbs overweight, you can lose and maintain an estimated 60lbs over 1-2 years with the lap band