It's pretty impossible to tell.
Gold is around 10k, Animal Meat is around 1500. That's a 1:7 ratio.
1 kg of Gold is around 36,000€ right now
And what do you pay at the supermarket for regular meat? You'll be hard pressed to break 100€ on a whole kg, and that would be some ridiculously exclusive meat and a species needs to go extinct for that. So taking 36€ for high quality beef for a kg, we're looking at a ratio of 1:1000 That is, 1 gram of gold is equal in value to 1 kilogramm of beef.
Another thing is consumer electronics. Assuming packaging and all that would result in a box weighing 20kg means there are 50 products in a 7000 credit container of consumer electronics. So 140 credits per box. With a good steak apparently costing 1 credit, 140 credits for a piece of consumer electronics does sound rather right. But not if compared to gold
But moving on to my favorite piece of broken commondities - Narcotics.
1g of Cocaine here today, the price of course greatly depends on where you buy it, but in the western world you're not getting 1g of Cocaine for less than €100.
That would put the value of a shipping container containing 1 ton of Cocaine at 100 million Euros. Now obviously that needs to be cut down immensely due to the high costs of drug distribution, but even assuming just 1% of that, we're still looking at a million. Another example, The Wire Season 4 Omar sells half the stolen Heroin back to Joe for $400.000 - a bargain price, too. Since that was transported in a small delivery van, it was probably less than a ton to begin with. So this raw Heroin apparently was worth considerably more than a million dollar per ton on wholesale pricing.
But looking at ED, a ton of narcotics is worth 200 credits. Yes, those of you who have never seen narcotics as it's banned everywhere: That's the price. A lousy 200 credits for a ton of hard drugs. This wasn't always the case, in FE2 narcotics were worth 600 credits, and everything was basically increased ten-fold with ED over FE2 (animal meat went from 130 to 1300, for example), Narcotics should be one of these 6000cr commodities today.
Another thing FE2 did was double black market prices for smuggled goods that are illegal in a system. So if you successfully smuggled Narcotics into a port, you had a profit margin of over 100%!
That is basically how it should work in ED as well. Make narcotics very expensive to buy and insanely profitable to sell at black markets, but limit the demand depending on population of the system. Right now, it's more profit to carry computer components around.