2. The number of students in Grade 4 at the Hope Primary School is $25 \%$ more than that in Grade 3, the number of students in Grade 5 is $10 \%$ more than that in Grade 4, and the number of students in Grade 6 is $25 \%$ less than that in Grade 5. The number of students in Grade 6 is 1 more than that in Grade 3. The total number of students from Grade 3 to Grade 6 at the Hope Primary School is $\qquad$ people.