This is truly annoying, the games Dogzilla plays thinking they hide from our view his ignorance and cowardice.
I don't know what number Nick has in mind - I read in the thread that he said he had a number in mind but I took his asking Dogzilla these questions to be a request to Dogzilla to state his viewpoint.
As with the Jaeger Report, since Dogzilla refuses to do say anything worthwhile, I will take the leap. And as with the Jaeger Report summary, anyone who wishes can throw darts at this post - and maybe, in contrast to what happened with the Jaeger Report, we can muster up an actual discussion of the core issues which Nick is trying to raise.
So, not having researched Nick's questions for myself, my viewpoint has been formed by the chapter contributed by Franciszek Piper to the USHMM collection, Anatomy of Auschwitz Death Camp. In this essay, Piper discussed the estimates others have made of deportations and deaths at Auschwitz - and the problems he has with them as well as how he derived his own revised estimates. He noted, too, that his deportation estimate correlates with that of Martin Gilbert in Atlas of the Holocaust and can be obtained by "tallying all the transports" of Jews to Auschwitz listed in that work.
According to Piper, about 1,300,000 people were deported to Auschwitz from at least the following countries: Hungary, Poland, France, the Netherlands, Greece, "Bohemia and Moravia," Slovakia, Belgium, Germany, Austria, Yugoslavia, Italy, Norway, and the USSR.
Piper concluded that, from this total of 1,300,000, about 213,000 inmates were transferred from Auschwitz and about 1,500 were released, 500 escaped, and 8,000 were liberated by the Red Army - meaning that almost 223,000 inmates left Auschwitz alive, leaving us with approximately 1,100,000 to consider.
Only about 400,000 prisoners were registered in the camp records - 300,000 or so being non-Jews and nearly 100,000 being Jews. (As Dogzilla tried to do in his first reply to Nick, deniers often ignore transport information and try passing off this 400,000 as the total number of inmates.) The number of unregistered non-Jews was at most, according to Piper, a few 10s of 1000s; by far, the unregistered prisoners were Jews.
Of the total number deported to the camp, Piper estimated that 85% were Jews - or about 1,100,000. Piper estimated that 135,000 Jews were transferred at various times from Auschwitz to other camps, either for labor or during the evacuation of the Auschwitz complex in 1945.
In Piper's view, we are left to account for about 1,100,000 prisoners who entered Auschwitz, about 960,000 or so of these being Jews transported to the camp.