1. (a) When used in this act, the term "cost to the retailer" shall mean the invoice cost of the merchandise to the retailer or the replacement cost of the merchandise to the retailer, whichever is the lower; less all trade discounts except customary discounts for cash; to which shall be added (1) freight charges not otherwise included in the invoice cost or the replacement cost of the merchandise as herein set forth, and (2) cartage to the retail outlet if done or paid for the retailer, which cartage cost, in the absence of proof of a lesser cost, shall be deemed to be three-fourths of one percent (3/4 of 1%) of the cost to the retailer as herein defined after adding thereto freight charges but before adding thereto cartage, and taxes, (3) all State and Federal taxes not heretofore added to the cost as such, and (4) a markup to cover a proportionate part of the cost of doing business, which markup, in the absence of proof of a lesser cost, shall be six percent (6%) of the cost of the retailer as herein set forth after adding thereto freight charges and cartage but before adding thereto a markup.
2. (b) When used in this act, the term "cost to the wholesaler" shall mean the invoice cost of the merchandise to the wholesaler, or the replacement cost of the merchandise to the wholesaler, whichever is the lower; less all trade discounts except customary discounts for cash; to which shall be added, (1) freight charges, not otherwise included in the invoice cost or the replacement cost of the merchandise as herein set forth, and (2) cartage to the retail outlet if done or paid for by the wholesaler, which cartage cost, in the absence of proof of a lesser cost, shall be deemed to be three-fourths of one percent (3/4 of 1%) of the cost to the wholesaler as herein set forth after adding thereto freight charges but before adding thereto cartage, and taxes, and (3) all State and Federal taxes not heretofore added to the cost as such.
3. (c) When used in this act the term "replacement costs" shall mean the cost per unit at which the merchandise sold or offered for sale could have been bought by the seller at any time within thirty (30) days prior to the date of sale or the date upon which it is offered for sale by the seller if bought in the same quantity or quantities as the seller's last purchase of said merchandise.
4. (d) When one or more items are advertised, offered for sale, or sold with one or more other items at a combined price, or are advertised, offered as a gift, or given with the sale of one or more other items, each and all of said items shall for the purposes of this act be deemed to be advertised, offered for sale, or sold, and the price of each item named shall be governed by the provisions of paragraphs (a) or (b) of Section 2, respectively.
5. (e) The terms "sell at retail", "sales at retail", and "retail sale" shall mean and include any transfer for a valuable consideration made in the ordinary course of trade or in the usual prosecution of the seller's business of title to tangible personal property to the purchaser for consumption or use other than resale or further processing or manufacturing. The above terms shall include any transfer of such property where title is retained by the seller as security for the payment of the purchase price.
6. (f) The terms "sell at wholesale", "sales at wholesale", and "wholesale sales" shall mean and include any transfer for a valuable consideration made in the ordinary course of trade or the usual conduct of the seller's business, of title to tangible personal property to the purchaser for purposes of resale or further processing or manufacturing. The above terms shall include any transfer of such property where title is retained by the seller as security for the payment of the purchase price.
7. (g) The term "retailer" shall mean and include every person, partnership, corporation or association engaged in the business of making sales at retail within this state; provided that, in the case of a person, partnership, corporation or association engaged in the business of making both sales at retail and sales at wholesale, such term shall be applied only to the retail portion of such business.
8. (h) The term "wholesaler" shall mean and include every person, partnership, corporation, or association engaged in the business of making sales at wholesale within this state; provided that, in the case of a person, partnership, corporation or association engaged in the business of making both sales at wholesale and sales at retail, such term shall be applied only to the wholesale portion of such business.

Laws 1949, HB 488, p. 103, § 2, emerg. eff. May 18, 1949.