Inquire scores of a class. You can input a student's id and get her or his scores ranking. And you can also inquire single course scores ranking.
All of the ranking will be presented in percent form.
You can see it at http://htmlpreview.github.io/?https://github.com/Lynn0108/inquirescores/blob/master/index_sim.html And examples of student's id are 1600011304, 1600011426.