De-garrison more profit?

I de-garrisoned a country 10 games months ago and my profit/loss went straight from -14B a month to -4B a month and has held at around -4B month. Why would there be a difference in cost between garrisoned and de-garrisoned weapons?

My guess is one of two possible reasons:

1) Weapons in garrisons or military units may use more ammunition when deployed than when sitting in the country stock.

2) The quality of ammunition in garrisons or military units may be higher than the quality of ammunition in the country stock, and since these will use the ammunition in the unit rather than country stock, the cost will be higher. Degarrisoning may have reduced the overall quality of ammunition.

Hi Mizore. Thanks for the reply. I can see what you are saying Thats a big change though

I saw some wierd changes in costs from de-commisioning garrisons and units too Nix. It took some months (game) but it did settle down to costing less to upkeep.

I presume you are de-activating the stuff you have dismantled?

No mate. Just de-garrisoned. Thats what confused me.