-72.5% is the change from 531 to 146
Calculation steps:
[( 146 - 531 ) ÷ 531] x 100 = -72.5%
Formula
Percentage change = [(146 - 531) / 531] x 100
Subtract the new number by the original number
146 - 531 = -385
-385 ÷ 531 = -0.7250470809792844
-0.7250470809792844 x 100 = -72.5%