That’s what I’m saying.
Let’s pretend that SPS has a student body of 4 with the following scores:
Student 1: 630/770/700 2100 total
Student 2: 740/630/700 2070 total
Student 3: 690/700/630 2020 total
Student 4: 690/700/760 2150 total
So in this example, the 25th and 75th percentiles for each section are as @DonFefe says:
But 25th percentile for total is 2020 (student 3) not 1890 (630+630+630) and the 75th percentile is 2150 (Student 4) not 2270 (740+770+760)