I was absent for 20% of total attendance days. Ideally it shouldn't exceed 10%. And the number would've been higher if my teachers didn't threaten me with not being able to write the exams if my attendance decreases further. This is high school.
Also, I barely studied, did no homework, BARELY finished projects on time but still managed these scores:
English: 95/100
Maths: 79/100 (i was super slow and paper was sorta lengthy)
Physics: 85/100
Chemistry: 85/100
Computer Science: 93/100
in final year of high school. The boards, in other words.
Average was 87%. 93+ average would've been great. Oh well. Didn't put enough effort. (you're supposed to be studying one month before exams - not playing devil may cry and watching anime lol)
I prolly won't skip much in my freshman year in college. Or much at all. Would depend on what they're teaching me and how.