-81.98% is the change from 455 to 82
Calculation steps:
[( 82 - 455 ) ÷ 455] x 100 = -81.98%
Formula
Percentage change = [(82 - 455) / 455] x 100
Subtract the new number by the original number
82 - 455 = -373
-373 ÷ 455 = -0.8197802197802198
-0.8197802197802198 x 100 = -81.98%