-85.26% is the change from 855 to 126
Calculation steps:
[( 126 - 855 ) ÷ 855] x 100 = -85.26%
Formula
Percentage change = [(126 - 855) / 855] x 100
Subtract the new number by the original number
126 - 855 = -729
-729 ÷ 855 = -0.8526315789473684
-0.8526315789473684 x 100 = -85.26%