Enforcement Rules of the Referendum Act Article 10

When the number of proposers, the number of joint signers, and the valid ballots of assent respectively prescribed in Paragraph 1, Article 10, Paragraph 1, Article 12, and Paragraph 1, Article 29 of the Act reach 1/4 of eligible voters with decimals, the decimal shall be calculated as 1.
中文原文 公民投票法施行細則(1070226訂定)第10條
本法第十條第一項及第十二條第一項、第二十九條第一項所定公民投票案提案人人數、連署人人數、有效同意票達投票權人總額四分之一,其計算數值尾數為小數者,該小數即以整數一計算。

English translation for reference only; the Chinese text prevails. Not legal advice.