Preface:
Let me begin by stating that these figures are a “guesstimate” and would be extremely variable depending on a multitude of factors. I did a little research to get some of the data but items such as retail income would be hugely variable depending on location and services used at that position. Car parking is easy enough to find however, can have huge disparity depending on time of stay. Passenger service charges was a little hard to find the figure of $8.7 per passenger is worked out on $179.1M income in this field divided by 20.5M passengers. A quick google search of this topic suggest I am in the right area.
Hayden Anderson - CQUniversity 