(a) For commodities prepackaged and sold or offered for sale on the same premises, a violation of Section 12024 is a misdemeanor punishable by a fine of not less than fifty dollars ($50) nor more than one thousand dollars ($1,000), by imprisonment in the county jail for a period not exceeding one year, or by both, if any of the following occurs:

1. (1) The violation is willful.
2. (2) The total monetary value of the shortage, calculated on the basis of the average error of an individual lot, exceeds two dollars ($2), as determined pursuant to regulations adopted pursuant to Section 12211.
3. (3) The total monetary value of shortages, calculated on the basis of the average error of each individual lot, as determined from a sample of packages selected pursuant to regulations adopted pursuant to Section 12211, within all lots found to be in violation of Section 12024 at a single location, exceeds ten dollars ($10).