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RJ_Sizzle said:
Torillian said:

My description would indeed mean that one of those sources would be reliable than the other. That doesn't make the two processes different processes. They are the same process with different resources. Have you ever been told NPD's official formula?

It's right on their site. What's the one for VGChartz? Jimmies don't get rustled over VGC figures being out in the wild. NPD on the other hand... I wonder why that is.

Show me the equation, I haven't found it through a quick google but you know where it is so make it easy for me. 

I don't wonder, it's because NPD's numbers are more accurate, which I never questioned. What I question is your claim that NPD uses estimates while VGC uses guesses from a hat. Both use estimates, it's a question of degrees of estimate and accuracy, which can be debated. 



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