Hello, my pup got neutered almost a year ago... The vet charged me a little over 300 (NY is expensive
), it included 2 baby teeth pulled and and the antibiotics for afterwards. It didn't calm him, I have strangers ask me if he's really neutered, as he's one of the most hyper dogs out there... As for chewing - he's never been a chewer so I can't tell. I think he did get more affectionate but it may also come with age.