Seems a little excessive if one is generously rounding up.
Walmart’s distribution is half that third, then subtract 40% for the scalpers who already obtained the item before it made it to the shelf. Then, drive three hours to another town where you find it even though you weren’t looking for it because you were at that Walmart* looking for ingredients for a side dish at a family function, but took the long way to the grocery section by way of toy department. Thing is, you found said item in sock aisle likely because someone found it earlier and hid it there so they could go to the pronoun specific bathroom.
That would be a more accurate assessment of the Walmart* distribution system.