In 2022, the enrollment rate of Ningbo Jiangbei Experimental Middle School was 8 1%. According to the ranking of key middle schools in Ningbo in 2022 on the website of personal library, 348 students graduated from Jiangbei Experimental Middle School in Ningbo in 2022, 96 students were admitted to key high schools, and 186 students were admitted to ordinary high schools. 96+186 = 282/348 *% = 8 1%, so the enrollment rate of Ningbo Jiangbei Experimental Middle School in 2022 is 81%.