-0.12% is the change from 837 to 836
Calculation steps:
[( 836 - 837 ) ÷ 837] x 100 = -0.12%
Formula
Percentage change = [(836 - 837) / 837] x 100
Subtract the new number by the original number
836 - 837 = -1
-1 ÷ 837 = -0.0011947431302270011
-0.0011947431302270011 x 100 = -0.12%