-14.35% is the change from 620 to 531
Calculation steps:
[( 531 - 620 ) ÷ 620] x 100 = -14.35%
Formula
Percentage change = [(531 - 620) / 620] x 100
Subtract the new number by the original number
531 - 620 = -89
-89 ÷ 620 = -0.1435483870967742
-0.1435483870967742 x 100 = -14.35%