-2.52% is the change from 832 to 811
Calculation steps:
[( 811 - 832 ) ÷ 832] x 100 = -2.52%
Formula
Percentage change = [(811 - 832) / 832] x 100
Subtract the new number by the original number
811 - 832 = -21
-21 ÷ 832 = -0.025240384615384616
-0.025240384615384616 x 100 = -2.52%