-72.33% is the change from 618 to 171
Calculation steps:
[( 171 - 618 ) ÷ 618] x 100 = -72.33%
Formula
Percentage change = [(171 - 618) / 618] x 100
Subtract the new number by the original number
171 - 618 = -447
-447 ÷ 618 = -0.7233009708737864
-0.7233009708737864 x 100 = -72.33%