10%。 According to the announcement of Dayun Affiliated Middle School in 2022, the lottery is for one out of every ten students, and the probability of choosing one from 10 is 10, so the lottery admission rate is 10. The middle school affiliated to Yunnan University was founded in 1927 with a long history of 92 years. The school adheres to the integration of arts and sciences and has school-running characteristics.