Grade and amount ratio of scholarships for outstanding students

(1) Grand Prize: 700 yuan for each student every year, accounting for 2% of the students.

(2) First prize: 500 yuan for each student every year, accounting for 6% of the students.

(III) Second prize: 300 yuan for each student every year, accounting for 10% of the students.

(4) Third prize: per student per year 150 yuan, accounting for 15% of the number of students.