NWEA Data Tracker for teachers. It is in word document form so you will be able to change the RIT scale norms for your subject/grade level.
This tracker will easily show progress for each student in your class.
It also includes areas for the Fall, Winter, and Spring proficiency percentages.
When my students take their NWEA, I highlight their scores in green if they are proficient. At the end I count them up and divide by the number of students. This way, I know what percentage of my class are proficient.
I also use this to make my center groups.