Don't know the answer to how they figure prices for MCG - but the commissary is five percent surcharge over cost (which will probably change soon when it privatizes) which you can see on your receipt. BX on the other hand, went private contractor some years ago, and as I recall it, the prices went up and the quality of products went down in many brands.
Private contractors might be required to sell ten percent or more lower than local civilians, but I've seen plenty of stores that sell lower than BX pricing for the same products. The only one I notice as less cost generally is the "Shoes" because when you price Nike and others, street prices are higher -- it's possible Nike makes a specific model (maybe less quality, but it doesn't appear less) for the BX stores. Like it makes a specific brand and price for big box stores ...
BTW John -- will be over at NAS JAX first week in Nov if you're around - or, could shoot up to King Bay???
