VGChartz Street Fighter 4 number incorrect?

[Aj_habfan]

MOmO_X said:

snyperdud said:

MOmO_X said:
I want to know VGChartz is not reliable or dependable because i must refer data form this site, if they're not realible i will stop refer data from this site.

99% of the time Vgchartz is accurate(from what I've seen).

This may fall under that 1% or maybe there is an explanation.

 

 

 I've ever thought as you, i wonder VGChartZ is NPD group? and Where're VGChartZ get sales number? I thought they got data from NPD and I believe them.

The sales data is often adjusted to closer reflect NPD numbers.