My puppy ate half a king sized chocolate bar, help!?

It takes 250 pounds of white chocolate to cause signs of poisoning in a 20-pound dog, 125 pounds for a 10-pound dog. White chocolate. It has the least amount of theobromine: 1 mg per ounce. Far on the other side of the spectrum is baking chocolate, which has a huge 450 mg of theobromine per ounce! i think he should be okay since it wasnt pure chocolate just keep and eye on him and call the vet tomorrow and just ask.