At what point ?

cooper1203:
[
assuming 1 tonne pallets 26 pallets to a lorry 26/£12 = £2.17 per tonne

tesco sell hienz backed beans at £2.05 per kg or £0.85 for a single can according to thier site
£2.05 x 1000 = £2050 per tonne
£2050 + £2.17 = £2052.17 per tonne
£2052.17 / 1000 = £2.0517 per kg
an increase of £0.0017
at the rates stated there are 205/85 = 2.4 cans per kg
£0.0017/2.4 = £0.00071 per can

Although I agree that it wouldn’t cause a huge increase, there are far more movements involved with selling a can of beans than the trip from the RDC to the supermarket, starting possibly with the movement of iron ore to a steelworks where the steel for the can is made. I don’t know where white beans are grown but I doubt it is in the field next to the Heinz factory.