Brolin is absolutely correct - that said, Global Air has a poor record of reporting "accurate" fuel pricing (or FBO services like crew car availability). Take MRN for instance: A week ago on March 2, MRN changed their fuel price from 5.xx to the current price of 5.65. Global Air is still reporting the old price even though GA (or maybe it was just iFly) reports that they downloaded current pricing as of March 5th.
Another fuel price website (popular because it provides much more accurate fuel price info) shows the correct price as of the day it was changed.
It's been a recurring request on the forum for iFly to switch to a better provider for fuel pricing - and here's my current suggestion - if Global Air continues to be used by iFly, then add a disclaimer letting users know that pricing may be inaccurate and suggest they contact the airport before assuming that iFly's indicated price is correct.