Obviously you didn't look at what percentage of these are useful items, like yeah I can get 5 legendaries in one pack BUT the point is that if I get 5 Legendary that really can't be used well, what's the point? I'm not bashing you for not looking at the percentage of L-Ms or anything, but 0.85 is pretty low to begin with, then the rate of useful items is so much lower.
There's also that pity system that has to be taken into account that as far as I know, no one understands still.
Then what is your method of getting items? Fortune Boxes? Because those have awful drop rates, trust me, I'm currently conducting a study on those. (By drop rate I mean the rate you even get the boxes) Special offers are super dependent on if you need the item or not, and most of the time people won't need the item.
My personal experience with Premium Packs and Boxes has been pretty pathetic. I believe I have 3 L-Ms, which isn't bad, but compared to the amount of packs and boxes that I have opened, I do think it's kind of lame.
Depends on what you get. I really don't need any of the normal E-Ms, as the rest I don't have really aren't necessary.
Take your current data, continue until you get 100 packs, then post that info. That will be the most accurate without going over the top.