Packages of meat, fish, or poultry offered for sale by door-to-door salespersons shall display the price per pound for each type and cut in the package. The price per pound shall be separately and accurately stated and shall be preceded by the words “price per pound” on each principal display panel of the package, as the term “principal display panel” is defined by regulations of the director adopted pursuant to Section 12610. All numbers and letters of the price per pound shall be of uniform size, at least one-quarter inch (6.35 millimeters) in height, and shall be generally parallel to the net quantity statement. There shall in addition be an area

surrounding the statement of price at least equal in width to the height of the letters and numbers in the statement of price which shall be free of any printed material.