Thanks. He's having a really hard time understanding this simple concept.

As a mathematician, might I say that none of this is mathematics (it's arithmetic), and none of you really grasp the real discussion involved. From a mathematical perspective, you haven't decided on what your variables represent, so you're each working out a different result because you're using different formulae. Both formulae are right, but they describe different things. The question at hand is, do MK8 and WD sales reflect system sales, or do they reflect the increase in system sales. The answer has yet to be determined.

Worth remembering as well that the UK is not the best barometer in terms of Wii U sales. It's like basing your Xbox predictions solely on Japan!

Of course I assume they represent the increase. Because that's what they represent. PS4 is not gonna drop by 84% this week.

As I said, it's not just math, but logic.

No, that's very unlikely.

This is completely feasible as only two days were accounted for in the Wii U's numbers.

I don't think so. Would be great for the Wii U but no, I don't think so^^

Depends on how many of the remaining MK8 sales comes from the MK8 bundle.

Sure, but you're ignoring a more complicated bit of logic.

Specifically, the idea that a portion of game sales are basically proportional to system install base at release - that is, with the Wii U and PS4 at similar install bases, launch sales of both games would end up being something like A + B*I + C*S, where I is existing install base, S is sales boost for the system, and A, B, and C are constants for each of the two games.

If we make this supposition, it's entirely plausible that the difference in drop in hardware is comparable to the drop in software sales.

To put it another way, you're falsely assuming that the baseline now is the same as it was prior to the release of the games.

Wii-U will be lucky to stay above 100k, and that's below ps4's baseline.