-27.22% is the change from 867 to 631
Calculation steps:
[( 631 - 867 ) ÷ 867] x 100 = -27.22%
Formula
Percentage change = [(631 - 867) / 867] x 100
Subtract the new number by the original number
631 - 867 = -236
-236 ÷ 867 = -0.2722029988465975
-0.2722029988465975 x 100 = -27.22%