-85.63% is the change from 863 to 124
Calculation steps:
[( 124 - 863 ) ÷ 863] x 100 = -85.63%
Formula
Percentage change = [(124 - 863) / 863] x 100
Subtract the new number by the original number
124 - 863 = -739
-739 ÷ 863 = -0.8563151796060255
-0.8563151796060255 x 100 = -85.63%