25% in municipalities of 7,000 or less inhabitants;
20% in municipalities of more than 7,000 and less than 70,000 inhabitants;
10% in municipalities of 70,000 or more inhabitants.
In either event, the municipal clerk shall provide for the submission of the question and for the election of a charter commission at the next general or regular municipal election, occurring not less than 75 days after the passage of the ordinance or the filing of the petition with the clerk. At the election the question above stated shall be submitted as other public questions are submitted to the voters of a single municipality.
N.J.S. § 40:69A-1