-73.63% is the change from 531 to 140
Calculation steps:
[( 140 - 531 ) ÷ 531] x 100 = -73.63%
Formula
Percentage change = [(140 - 531) / 531] x 100
Subtract the new number by the original number
140 - 531 = -391
-391 ÷ 531 = -0.736346516007533
-0.736346516007533 x 100 = -73.63%