-90.26% is the change from 842 to 82
Calculation steps:
[( 82 - 842 ) ÷ 842] x 100 = -90.26%
Formula
Percentage change = [(82 - 842) / 842] x 100
Subtract the new number by the original number
82 - 842 = -760
-760 ÷ 842 = -0.9026128266033254
-0.9026128266033254 x 100 = -90.26%