-21.15% is the change from 832 to 656
Calculation steps:
[( 656 - 832 ) ÷ 832] x 100 = -21.15%
Formula
Percentage change = [(656 - 832) / 832] x 100
Subtract the new number by the original number
656 - 832 = -176
-176 ÷ 832 = -0.21153846153846154
-0.21153846153846154 x 100 = -21.15%