PS Vita sales jump 68% following PS4 launch

[Noobie]

ethomaz said:

gergroy said:
Is that year on year or week on week?

Week on week I guess.

Some maths using UK numbers...

Week before PS4 launch: 4,340
Week PS4 launch: 7,291
Week after: 12,030

That's mens at least 10k undertracked in UK in the last two weeks.

How can you know it was not overtracked in the week before PS4 launch.. Maybe it was only 1500 in the week before PS4 launch then went to 2.5k and then 4.2k ..??

So it was under tracked or over tracked cannot be determined by %age only..