Any unexcused absence deducts a percentage point from your final grade: two latenesses count as one absence.

无故旷课 者，将从期末成绩扣除百分之一：迟到两次视同缺课一次。

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At the top, as well as basic information about the school, there are ABSENCE figures showing the percentage of half-day sessions lost due to authorised and unauthorised absence.

BBC: NEWS | UK | Education | Guide to the primary school tables