-71.24% is the change from 539 to 155
Calculation steps:
[( 155 - 539 ) ÷ 539] x 100 = -71.24%
Formula
Percentage change = [(155 - 539) / 539] x 100
Subtract the new number by the original number
155 - 539 = -384
-384 ÷ 539 = -0.712430426716141
-0.712430426716141 x 100 = -71.24%