Well...I was thinking about that.
Assassin's Creed 2 cost $60 in stores for you and I. Ubisoft sold it for $48 to retailers at launch. Lets say that price held over the entire fiscal year...
The most they could get for the game is ~$48 * 9,000,000 or ~$432,000,000
Sony and Microsoft get ~$90 million of that
Another ~$9 million goes to making the discs / instruction manuals
So Ubisoft is left with ~$332 million
The game probably had $30-$50 million in advertising (15% of total revenue)
Probably cost $20-$30 million to make
So on the $432 million (340m Euro) they get up to 65% of the revenue as profit, maybe as much as $282 million / 222m Euro profit on the game.
Their revenue was $1.106b for the fiscal year, 45% of which came on X360 / PS3....but 39% of X360/PS3 revenue (432/1106) came fron Assassin's Creed 2...which means almost every game for those systems probably performed well below expectations. It amounts to something like $432m from Assassin's Creed 2...and $66m from all other HD games...
For Wii you have ~$28 * 3m for Just Dance which is like ~$84 million but Ubisoft revenues from other Wii games were ~$204m. That means a fair amount of other Wii stuff did ok or well, or a few other games clear 1m units.