Anyway I redo the 11 double against 10 in US rule.
I calculate for the hole game. In every dealer 10, there's a chance of 7.692 he will get a blackjack and refund the doubled stake.
Chances of winning still = 47.1937874
2 unit of it = 47.1937874 * 2
= 94.3855
Chances of losing...