jetjockey737 try contacting Airbus Customer Services - Flight Operations Support & Line Assistance in Toulouse who produce an excellent series of documents “Getting to Grips with …” The following titles may have some of the information that you seek:-
Getting to grips with the cost index
Getting to grips with modern navigation
Getting to grips with fuel economy
Getting to grips with aircraft performance
These documents have been issued to operators on a CD, but they may (hopefully) appear on the web page
’Airbus Safety Library’ where related subjects such as ‘Understanding Takeoff Speeds’ are posted.