-69.57% is the change from 539 to 164
Calculation steps:
[( 164 - 539 ) ÷ 539] x 100 = -69.57%
Formula
Percentage change = [(164 - 539) / 539] x 100
Subtract the new number by the original number
164 - 539 = -375
-375 ÷ 539 = -0.6957328385899815
-0.6957328385899815 x 100 = -69.57%