How about this way- the very original price of this pack is actualy that 1250 cp/ingots- because it gives you 10 Seal Scrolls, which fulfill this value AND additional reward, which is random~~ So let's say that it's actualy the starting price of this box.

Now we have different events and every of them can have different price of things- more discounted or less: I think that pack on second pic is from Konoha Gift Shop event- and there it would be already discounted from "starting price" but also more limited to how much you can buy daily.

AND THEN we have Daily Special with new offer for this item- which is you either can get it for the same discounted price as in Konoha Gift Shop but also- c*e 10 or 20% discount vouchers from 7 Days of Welfare task and recharge part, to make cost of it even smaller.

Legit for me.

Edit: That "original price" of those packs is just the shop value of the items you get for sure from each of it. that's why i say it's the "starting price"