PS3 won this week in NA, congrats!

[Stever89]

akuma587 said:

Stever89 said:

 

Besides organizing data, it takes one computer to calculate the sales... and deciding some random factors that might affect the sales could be done by 10 people.

Tell me, how many times has NPD changed their numbers last year to correct wrong sales, and how many times has VGChartz done so last year?

VGChartz has corrected their's every month too. There is nothing wrong with correcting data to make it right. I have a lot of respect for VGChartz and think they are more forthright than the NPD, but major businesses subscribe to NPD numbers for a lot of money for a reason, because they are the most accurate gauge of sales numbers.

If Wal-Mart is not giving their numbers to NPD, I highly doubt they are giving them to VGChartz.

But how many times does NPD correct their numbers?