Is there an estimate of what the externality cost is for the packaging per unit? Would be useful to compare to other things that harm the environment like eatin

Is there an estimate of what the externality cost is for the packaging per unit? Would be useful to compare to other things that harm the environment like eating meat, taking car rides, to know how much I should think about this. E.g. if my iphone packaging is equivalent to one car ride I probably won't concern myself that much, but if it's equivalent to 1000 then yeah maybe I should. Right now I really couldn't tell you which of those two the true number is closer to. I don't expect we would be able to know a precise value but just knowing which order of magnitude it is estimated to be would help.