-85.88% is the change from 531 to 75
Calculation steps:
[( 75 - 531 ) ÷ 531] x 100 = -85.88%
Formula
Percentage change = [(75 - 531) / 531] x 100
Subtract the new number by the original number
75 - 531 = -456
-456 ÷ 531 = -0.8587570621468926
-0.8587570621468926 x 100 = -85.88%