tontus said: NPD - Bestsellers, March 2013. Some figures to add to the OP. 1. God of War: Ascension - 633,000 (Vgchartz 584,000). 2. Gears of War: Judgment - 620,000 (Vgchartz 602,000). 3. Bioshock Infinite (360) - 582,900 (Vgchartz 558,000). 4. Luigi's Mansion Dark Moon - 360,000 (Vgchartz 452,000). 5. Tomb Raider (360) - 345,600 (Vgchartz 361,000). 6. Tomb Raider (PS3) - 294,400 (Vgchartz 280,000). 7. Bioshock Infinite (PS3) - 287,100 (Vgchartz 265,000).
http://www.neogaf.com/forum/showthread.php?t=542856 (A lot of pages to look through but all the information above is there, not 100% sure whether PC sales are included for TR & BI or not, don't think they are though).
Looks like Vgchartz needs to do some adjusting, especially for God of War: Ascension (undertracked 49K) and Luigi's Mansion Dark Moon (overtracked 92K). Everything else is fairly close though. Fair do's, Vgchartz. |
Not trying to be unfriendly, but do you realize how amazing that tracking is by VGC? Everybody should realize this.
A +/-10% discrepancy is within the statistical margin. No adjusting needed.
Software tracking this month was rock solid by VGC. So solid that it strengthens my conspiracy theory that ioi has a subscription at NPD.
Hardware tracking is a completely different story. That's because NPD uses a different method than VGC in presenting their numbers since they never adjust past HW numbers, they only adjust for past tracking errors by manipulating their very latest numbers (those we see in a monthly report) and possibly by manipulating future numbers if the past discrepancy between tracking and reality simply was too high to not make the published numbers look unrealistic.