Some people (possibly the same as those that argue that Doctor Who isn’t Doctor Who’s Name or that “they” isn’t a perfectly good singular pronoun that’s been in use for centuries) have occasionally been known to argue that it’s not possible to give 110%.
Of course it is.
Let’s take a look at George Osborne, who I’m told recently said on ITN news that he was “110% focussed on the economy”.
Let’s assume that he was previously spending, oh, ten hours a week focussing on the economy. (This may be generous, given the complete rat’s arse he’s making of it.)
Anyway, all he has to do is spend an extra hour thinking about it. Bingo, 110% focussed on the economy.
Job’s a good’un.
(Well, not his, obv. He’s rubbish at it.)