Dent in Macbook pro 15 inch

I have a dent in my Macbook Pro 15 inch, early 2011
It is located near the battery indicator on the side of the laptop.
How much will it approximately cost to fix this?
This dent caused small gap between the unibody and the bottom case.
Thanks a lot

Such dents require replacement of the case itself to repair.  I don't know how much it cost in a recent unibody MacBook Pro, but when I dropped my older (non-unibody) MacBook Pro in 2010 and dented it in that same place, I was quoted $610 for the repairs.  But, only Apple can tell you what the cost will be for your MacBook Pro.