-22.09% is the change from 842 to 656
Calculation steps:
[( 656 - 842 ) ÷ 842] x 100 = -22.09%
Formula
Percentage change = [(656 - 842) / 842] x 100
Subtract the new number by the original number
656 - 842 = -186
-186 ÷ 842 = -0.2209026128266033
-0.2209026128266033 x 100 = -22.09%