February 2013 NPD Thread - 360:302k, PS3:~270k, 3DS:~191k, Wii:~100k, Wii U:66k, PSV:38k

[Jozu]

Could someone please tell me simply how much it's estimated that the PS3 and the Xbox 360 were over/undertracked by?

It looks like they've been undertracked but it's by such an amount that if it were true then this site isn't reliable at all.