Nuigini
I think you need to understand what I said
I said that 1 B747 requires 8-9 crews, not 8-9 people. ie 8-9 x the number of people comprising a crew. In other words, to fly one B747 you need 8-9 complete crews.
Currently, a crew comprises generally 15 (occasionally 16) cabin crew plus a flight crew of 2,3 or 4 (averaging probably 2.8). So for flight crew, a reduction of 8 aircraft would require 8x2.8 or about 22 fewer pilots (8 captains and 16 co-pilots, roughly), if you wish to compare.
Maybe your maths come from the BASSA school of logic, ie pure fantasy
