Rocket Science?
Guys, this is not rocket science.
A half decent programmer can write a calculation program that asks pertinent questions to error check the fuel/TO calcs.
In the case of EK, a simple series of questions, like departure location, destination, aircraft type (for the AB guys who swap a lot), POB, windspeed would come back with an answer that can be compared with the crew calcs.
A simple result of 'very near' or 'miles out' would be returned.
Now, back to programming....