Is your local shop ripping you-off? Answered
I was vaguely interested in wholesale prices for shop products, and managed to find this price-list.
The wholesale price is WSP, RSP I guess is the Recommended Sale Price (I think there must be tax in there somewhere), and whatever POV stands for would be the margin. If you think someone's expensive: either they've got an expensive supplier, or you don't know WSP, or they are making the most of you.
(But remember, 8-'till-laters work hard to earn a living, they do need some margin)
P & H price-list - as a major distributor these prices will be around the "good as one can get" mark.
E.g. Haagen-Dazs 100ml £23.99 for 24x = £1 per tub
Hovis Soft 800g £1.14 ea
Cheesestrings Cheddar 21g £9.24 for 24 = £0.385 ea
"What not butter" 1Kg £18.14 for 12, £1.51 ea
Or just marvel at what crap you can stock your shop with....
It's only a bit of searching, you could check your prices (different country) by searching specifically differently. (Look for who is delivering stuff)
I do remember a local shop which was regarded as a rip-off to the extent some of my friends would steal stuff by way of compensation... not much though, Pot-Noodle here & there...