Question by Jem: How do you calculate for the value of an American Gold Eagle coin and how are the prices of Gold Bullion set?Same as the title. Thanks Best answer: Answer by guruGold and silver are traded on the markets. So are platinum, palladium, copper, zinc, wheat, corn, and all…Continue readingHow do you calculate for the value of an American Gold Eagle coin and how are the prices of gold Bullion set?.