One thing is for sure 360 didnt sell anywhere near 43% in EMEEA countries (excluding UK), at best 30%.
Even though there was a MW3 bundle for the 360 in every major Euro country? And Skyrim being advertised hard on 360 far more than any other platform? I'm sure you'll see things revert more back to normal next week, but why would there NOT be a big jump for the 360 in Europe this week? MW3 bundle and Skyrim make for a huge bump in 360 sales.
I was just talking about MW3 360 version sales, cant say anything about Skyrim.