
Margins of victory are calculated as the winner's vote percentage minus the runner-up's vote percentage. For yes/no questions, the margin is the absolute difference between Yes and No percentages. Only certified results are used. Uncontested elections are treated as 100 percentage point margins. Tied elections have 0 percentage point margins. If an election is cancelled, postponed beyond the expiration date, or lacks certified results by expiration, it is excluded from the count. For multi-winner elections, each winner's margin is calculated relative to the next-highest candidate not elected.