How much does it cost to declaw a cat at petsmart?

Declawing a cat can cost at least $300 and is advisable if the cat is destroying furniture which cats can do if it is soft material that its' paws can penetrate but if furniture is bought that is smooth and hard to penetrate then it may not be necessary to do it . It is good to have a good scratching post for the cat and also use catnip to attract it to the post.