Public Welfare Lottery Issue Act Article 6-2

When an agency that receives surplus draws up anticipated revenue, 90% of the actual allocated surplus in June of the previous fiscal year shall be used as a basis.
中文原文 公益彩券發行條例第6-2條
公益彩券發行盈餘之獲配機關編製歲入預算者,應以前一會計年度六月份實際獲配盈餘之百分之九十為基數估算編製之。

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