I don't know the cost, but they are expensive and some places charge to remove the polish ,so you better ask before you have it done.The cost will add up....You can take it off yourself, but it really is not a good idea. It is tough to do and not good for your nails.
The cost of acrylics or gel nails at Golden Nails in Leominster, MA is about $50. The price will vary depending on the colors and the quality of the brush set you have. The shipping cost is also taken into consideration.