How did the school lose 50 students in 3 years? Essentially 1/8 of the student body disappeared within 3 years? We’re they busing kids in before, now they are not any more?
API is just another way to look at demographics. Somehow within the last 3 years the demographics changed. Either a bunch of apartments are now asigned to another school, or they stopped busing in kids, hats my best guess.