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In page V-2 rocket:
"The German V-weapons (V-1 and V-2) cost the equivalent of about US$500 million.[1] Given the relatively smaller size of the German economy, this represented an industrial effort equivalent to but slightly less than that of the U.S. Manhattan Project that produced the atomic bomb. 6,048 V-2s were built, at a cost of approximately 100,000 ℛ︁ℳ︁ (£2,370,000 in 2011) each[citation needed]; 3,225 were launched. SS General Hans Kammler, who as an engineer had constructed several concentration camps including Auschwitz, had a reputation for brutality and had originated the idea of using concentration camp prisoners as slave laborers for the rocket program. More people died manufacturing the V-2 than were killed by its deployment.[2]