A.
A tax is hereby levied upon all persons and corporations now or hereafter conducting a transient retail business in the City of Buffalo.
B.
Such tax shall be computed in the manner and at the rate specified in the General Municipal Law of the State of New York. Said tax shall be due and payable immediately upon the expiration of the permit hereinafter mentioned and immediately upon the completion of said business if the same is completed prior to the expiration of said permit.