4k1x3r said:
No you didn't understand, they directly track all the big retailers in the USA, except Walmart and another one, they kind of speculate on their sales by using datas of past years when they used to track their sales directly. So NPD's accuracy is not quite perfect considering how big Walmart is and past years trends never repeat forever. |
Perhaps I should make it more clear. When NPD doesn't track Walmart data, it not only doesn't track the sales of GT5 but all games. Hence, numbers we see for every game are "calculated" (as you call it). Unless you are suggesting GT5 is selling extremly well in Walmart, I don't think the calculation would affect it so much.
MikeB predicts that the PS3 will sell about 140 million units by the end of 2016 and triple the amount of 360s in the long run.







