how do you modify aircraft price?

I've tried simply changing the xml file, which does change the price that is reflected in-game... but then I get the message that XXX is paused due to financial resources and nothing happens.

fwiw I'm simply trying to fix the marauder costing 7.5mil (instead of 750k), after my xml change to the price the game will subtract 750k money but will pop up the above error... I figure I'm missing some edit somewhere.

Which xml file are you editing?

The manufactures.XML

In game the price shows as 750k now, but for whatever reason some part of the game still seems to believe it's 7.5mil

Yeah, wrong file that's why

Look at items.xml instead.