A licensee may conduct another business simultaneously with managing a liquor and/or beer outlet; provided, if such other business is in any manner affiliated or related to the liquor and/or beer outlet it must be approved by majority vote of the commission prior to initiation. Said other business may be conducted on the same premises as a liquor and/or beer outlet, but the licensee shall be required to maintain separate books of account for the other business. [Ord. Liquor and Beer Ordinance § 205.]