-0.12% is the change from 863 to 862
Calculation steps:
[( 862 - 863 ) ÷ 863] x 100 = -0.12%
Formula
Percentage change = [(862 - 863) / 863] x 100
Subtract the new number by the original number
862 - 863 = -1
-1 ÷ 863 = -0.0011587485515643105
-0.0011587485515643105 x 100 = -0.12%