There is levied an annual occupation tax, which shall be collected quarterly, against the persons, on account of the business activities, and in the amounts to be determined by the application of the rates against gross income, as follows:
Upon every person engaged in or carrying on the business of selling or furnishing electric light and power, a fee or tax equal to six percent of the total gross income from such business in the city during the quarter next preceding the tax year for which the license is required.
(Ord. 705 § 6, 1962; Ord. 962, 1975; Ord. 1196 § 2, 1982; Ord. 017-23 § 1 (Exh. A))