To get that percentage you just need to divide 1550 by 200p:
1550/2000 = 0.775
Which means that only 77.5% of the students voted
I hope you understood my brief explanation. And please consider marking this awnser as Branliest. Thank you ! :)
(-8,-7) is in 3
(8,7) is in 1
(8,-7) is in 4
(-8,7) is in 2
:-)