About 3%. According to the query of official website of South Normal University, in 2022, the failure rate of advanced mathematics in South Normal University will be around 3%. Heather is located in Nanjing, the ancient capital of the Six Dynasties. It is a national "world-class discipline construction university" jointly established by the Ministry of Education and the People's Government of Jiangsu Province, and the first batch of key construction universities in the national "21/project". Jiangsu high-level universities have been selected into the national "11plan" excellent teacher training plan, excellent legal talent education training plan, national high-level university graduate program, China government scholarship institution for overseas students, national college students' cultural quality education base, and demonstration base for studying in China by the Ministry of Education. It is one of the birthplaces of higher normal education in China.