-8.61% is the change from 581 to 531
Calculation steps:
[( 531 - 581 ) ÷ 581] x 100 = -8.61%
Formula
Percentage change = [(531 - 581) / 581] x 100
Subtract the new number by the original number
531 - 581 = -50
-50 ÷ 581 = -0.08605851979345955
-0.08605851979345955 x 100 = -8.61%