An 80/20 rule fits the distribution of product sales in the catalog channel quite well, but in the Internet channel, this rule needs to be modified to a 72/28 rule in order to fit the distribution of product sales in that channel.
Pravilo 80/20 vrlo dobro odgovara distribuciji prodaje proizvoda putem kanala kataloške prodaje, no u internetskom kanalu ovo se pravilo mijenja u pravilo 72/28, kako bi se prilagodilo distribuciji prodaje proizvoda u tom kanalu.