How big are the sales difference between console and PC games?

[wangjingwanjia]

Titanfall according to VGC numbers sold 900 thousands on the X1 and 120 thousands for the PC. These numbers are, if I understand it retail/disc sales and do not include digital tales of either version, yes?

So by judging these numbers there's almost 10 to 1 in favour to the console version of Titanfall, especially if we would add the X360 version later on.

Titanfall is just a fresh example, I am thinking of the whole gaming industry as a whole here.

Another example could be The Elder Scrolls V: Skyrim;
PC: 3.39m
PS3: 5.38m
360: 7.87m

For consoles that is 13.25m vs. 3.39m for PC. That's 25% or 2.5/10 of the total sales. Not a small difference.

So, is this the reality, do PC versions of multiplatform games really just sell 10-20% of a games total sales? Or if we include sales from Steam, Origin and other digital markets, would we see a more equal sales in regards PC vs. consoles, or would consoles versions still kick the ass of PCs?