Though this was back in the 90s and things might have changed since then, when I stocked the cereal aisle, Kellogg's had somewhere in the range of 0.5% to 1% em

Though this was back in the 90s and things might have changed since then, when I stocked the cereal aisle, Kellogg's had somewhere in the range of 0.5% to 1% empty boxes. Really weird the first time you pull one out of the shipping box to find the individual box fully sealed but empty.