It is assumed in those calculations we will stop by the ASDA BUT we don't know the actual distances involved!!
How about for thrust setting for full rate or derate?(no Ass) and go in the take off field limit weight table to find the take off field lengh required?
You just need the thrust rating,temp,weight,slope,dry,wet...
A B737 uses about 60% to accelerate and 40% of the distance to stop.
Why cant the B777 be the same?
Tme to open your FCOMs again i guess