Hi guys, I am new here, and to be honest I am pretty ignorant to the topic of fire assays. I have been taking karat gold scrap and melting them down into bars and taking samples off those bars. I have been selling my gold to another party who is using a fire assay. Their assay is consistently coming out about 2 to 4 percent purity above what I am showing in my fire assay. This other party has been doing it a while now and they are reputable so I believe it's me losing gold somewhere in the assay and that they are doing theirs correctly. How could I be losing gold and showing less purity than what is there? Does anyone have any information that could help me? I appreciate all help because I am truly lost right now.