-2.4% is the change from 832 to 812
Calculation steps:
[( 812 - 832 ) ÷ 832] x 100 = -2.4%
Formula
Percentage change = [(812 - 832) / 832] x 100
Subtract the new number by the original number
812 - 832 = -20
-20 ÷ 832 = -0.02403846153846154
-0.02403846153846154 x 100 = -2.4%