-68.93% is the change from 531 to 165
Calculation steps:
[( 165 - 531 ) ÷ 531] x 100 = -68.93%
Formula
Percentage change = [(165 - 531) / 531] x 100
Subtract the new number by the original number
165 - 531 = -366
-366 ÷ 531 = -0.6892655367231638
-0.6892655367231638 x 100 = -68.93%