No public dance shall be held without first obtaining a permit therefor. Such permit shall be issued by the Mayor upon application when he is satisfied from information and investigation that such dance will not be detrimental to the public welfare. The application shall state the time and place of holding the dance, the closing hour, the fee or charge for admission or attendance, if any, the person or persons who will be in charge or control thereof while the same is being given and the person or persons promoting it. A fee of twenty-five dollars ($25.00) shall be charged for the issuance of the permit for a single dance or entertainment.