Answer:
22%
Step-by-step explanation:
Given
Original number of students = 250
New number of students = 195 students
Number of students absent = 250 - 195 = 55
percentage decrease = Number absent/Original number * 100
percentage decrease = 55/250 * 100
percentage decrease = 5500/250
percentage decrease = 22%
Hence the percentage decrease is 22%
