Calculates the amount you should be paid per Gram or Pennyweight for Gold, Platinum and Silver.Just enter the current spot price for Gold, Platinum or Silver and the percent of spot you expect to get paid and the Scrap Price Calculator will give you results per Gram or Pennyweight for each Karat (24k,22k,20k,18k,14k,10k).It returns results of .999,.950,.925,.900 for Platinum and Silver.