-40.83% is the change from 911 to 539
Calculation steps:
[( 539 - 911 ) ÷ 911] x 100 = -40.83%
Formula
Percentage change = [(539 - 911) / 911] x 100
Subtract the new number by the original number
539 - 911 = -372
-372 ÷ 911 = -0.4083424807903403
-0.4083424807903403 x 100 = -40.83%