-31.72% is the change from 911 to 622
Calculation steps:
[( 622 - 911 ) ÷ 911] x 100 = -31.72%
Formula
Percentage change = [(622 - 911) / 911] x 100
Subtract the new number by the original number
622 - 911 = -289
-289 ÷ 911 = -0.3172338090010977
-0.3172338090010977 x 100 = -31.72%