How do they charge for spay and neuter for dogs? Is it by weight or the temperament of the pooch? Does the charge happened to come with vaccines and rabies shots?.

I'm not sure about neutering, but spay is by weight. All vaccines are additional

Thank you for answering. But is there a minimum amount? or max amount to get a general idea of how much it would be for each weight class? I'm shopping around to see who has the best package for my pup and my wallet.

They charge according to size for spay and neutering. Vaccines will be an additional charge.