i just checked again and was right!! there is a average of .034+ grams of gold in each cell phone and that ant counting the ic chips 15 boards would = .51+ gram or 1/2+ of a gram. 13.3 times that = 6.5+ grams per 200 phones plus with the ic chips and mcc,s would get me right on the money. you data might be right! but plus the ic chip and other gold in the phone it comes out very close i know what the check was for and it was for $1.100.00 just like jim says the refiner will lie over and over 200 good cell phones got me 1.100.00 but next time it might be less but not to much less. the price of gold is not every going to be less than 1700 a oz. and cell phones and all gold plated e scrap is worth big money.