Yeah I just came back from Jakarta, in the 7-11 equivalent (Indomaret), prices for real Coca Cola are:

* 390ml (cold): 23p

* 1l (typically ambient): 42p

* 1.5l (typically ambient): 64p

However the 390ml is often on special offer - I paid 17p quite often.

(They also have an even smaller cold Coca Cola, 250ml at around 15p)

I know you can talk about lower wages or whatever, but the point is that the small one is cheapest, which is what you'd expect, and the prices increase more-or-less proportionately, which is again what you'd expect. Also the cheapo cola is called "Big", and it's £1 for 3 litres, sometimes slightly cheaper on special offer, so perhaps 25% cheaper than Coke - a saving, but not the insane price difference you see in the UK.

Meanwhile in the UK it's 49p for 2 litres of Aldi cola (so actually cheaper than even than the cheapo Indonesian stuff, making the "lower wages" argument wrong), but Aldi still charge the same absurd £1.89 for a 500ml bottle Coke, yet a 1.25l real Coke is £1.25 in most supermarkets but again not chilled.

What I've done sometimes to avoid the "you must be mental to pay that for a soft drink" in the supermarket is just gone to the juice aisle and bought a litre of juice for £1 instead of paying the £1.89 for 500ml of Coke - there's literally no justification for it whatsoever, it's just a straight-up rip-off - 500ml bottles of Coke don't expire, they don't cost that much to keep cool otherwise the 1l juice wouldn't be £1, it's just them saying "if you are crazy enough to pay this, well this is what you have to pay". And if it was in a tourist attraction or something it make sense - there's nowhere else to buy a drink and you're thirsty. But this is in a supermarket where there are inevitably more rationally priced options.