Look up the minutes from the last meeting, and find the last numbered minute. If your organization is brand new or has not properly numbered past minutes, start with minute 1.
Add 1 to this minute to create your starting number for the new meeting. If the last numbered minute was 202, then this meeting will start with 203.
Give each official minute a new number in consecutive order. An official minute is one that has a mover and a person to second that and that is voted on in the affirmative.
Keep minutes in the order in which they are discussed, which may differ from the agenda.