-9.54% is the change from 587 to 531
Calculation steps:
[( 531 - 587 ) ÷ 587] x 100 = -9.54%
Formula
Percentage change = [(531 - 587) / 587] x 100
Subtract the new number by the original number
531 - 587 = -56
-56 ÷ 587 = -0.09540034071550256
-0.09540034071550256 x 100 = -9.54%