The number is alarming, but even if the 1:800 ratio is correct, not right. It would be correct if we were 13.5 billion people on earth, but we are only 8 billion, so 59.25% of the 13.5.
59.25% of 17 million is 10 million, which is of course still a lot!
What „The Vigilant Fox“ did wrong is that he didn’t take into account that many only died after the 2nd or 3rd injection. According to his calculation, 40.75% would have died twice, which is not possible (except in James Bond)