-86.06% is the change from 531 to 74
Calculation steps:
[( 74 - 531 ) ÷ 531] x 100 = -86.06%
Formula
Percentage change = [(74 - 531) / 531] x 100
Subtract the new number by the original number
74 - 531 = -457
-457 ÷ 531 = -0.8606403013182674
-0.8606403013182674 x 100 = -86.06%