N.C. Gen. Stat. § 81A-28: Declarations of unit price on random packages.

In addition to the declarations required by G.S. 81A-27, any package being one of a lot containing random weights of the same commodity and bearing the total selling price of the package shall bear on the outside of the package a plain and conspicuous declaration of the price per single unit of weight at the time it is offered for retail sale. (1975, c. 544.)