I doubt if the bitcoin ecosystem is mature enough that anyone is keeping over 50% of the BTC they earn. Fiat is still needed to pay most business expenses, I'm guessing. There are a few examples of some employees being paid in BTC though.
Sorry bad english i meant profit.I don't expect anyone to pay business expense with bitcoin they kept, that's why i ask about keeping profit.
Instead of keeping it in fiat a company could very well keep it partly in form of bitcoins before reinvesting it later (by selling probably).
This is just taking risk on the profit not the turnover ...
