-0.12% is the change from 832 to 831
Calculation steps:
[( 831 - 832 ) ÷ 832] x 100 = -0.12%
Formula
Percentage change = [(831 - 832) / 832] x 100
Subtract the new number by the original number
831 - 832 = -1
-1 ÷ 832 = -0.001201923076923077
-0.001201923076923077 x 100 = -0.12%