99th percentile on MAPS test means that out of 100 children, only 1 can be expected to have a higher test score. It means there's virtually nothing left to learn. A 99th percentile score in Winter means a child will sit through the next semester and learn nothing.

85th percentile means out of 100 children, only 14 can be expected to have a higher test score. An 85th percentile score in Winter means a child still can learn something in the classroom.

Do you want to see 99th percentile or do you want to see growth? You're not going to see both at the same time on MAPS.