-26.46% is the change from 858 to 631
Calculation steps:
[( 631 - 858 ) ÷ 858] x 100 = -26.46%
Formula
Percentage change = [(631 - 858) / 858] x 100
Subtract the new number by the original number
631 - 858 = -227
-227 ÷ 858 = -0.26456876456876455
-0.26456876456876455 x 100 = -26.46%