Mortgage payments are based on the amount you borrow, which largely revolves around the area; ‘nice area’ pay lots, ‘crap area’ pay less for equivalent sized buildings. Standing charges are more to do with the connection to the gas, electricity or gas, the major part is consumption based. Hence the reason for people moving suppliers to save a few quid.
As I say by having a fixed membership you eradicate the variability. Just by reading the reports above there is acceptance that cadet numbers have been and are reducing and reading between the lines you can see the pro rata money grab increasing to keep the status quo. Much of the reducing numbers are squadrons dumping cadets. We do it once a quarter