Bucks_raj, that's a very good point but you're saying that only 2 kt difference would give approximately 900m more, that's way too much from my point of view. What I think is that ENGINE INOP GO DISTANCE displayed for FULL 24K is based on the lowest V1 >>> 94 kt, in this case, 46 kt difference, giving 900m more, makes more sense.
Regarding ATM, temperature, density, performance or whatever, the end of the story is that when you press TOGA, engines accelerate to N1%, ATM gives a lower N1 than FULL, so less acceleration. ALL ENGINES GO and ASDR prove this, FULL gives better performance.