-26.2% is the change from 855 to 631
Calculation steps:
[( 631 - 855 ) ÷ 855] x 100 = -26.2%
Formula
Percentage change = [(631 - 855) / 855] x 100
Subtract the new number by the original number
631 - 855 = -224
-224 ÷ 855 = -0.26198830409356727
-0.26198830409356727 x 100 = -26.2%