-68.41% is the change from 858 to 271
Calculation steps:
[( 271 - 858 ) ÷ 858] x 100 = -68.41%
Formula
Percentage change = [(271 - 858) / 858] x 100
Subtract the new number by the original number
271 - 858 = -587
-587 ÷ 858 = -0.6841491841491841
-0.6841491841491841 x 100 = -68.41%