-81.94% is the change from 454 to 82
Calculation steps:
[( 82 - 454 ) ÷ 454] x 100 = -81.94%
Formula
Percentage change = [(82 - 454) / 454] x 100
Subtract the new number by the original number
82 - 454 = -372
-372 ÷ 454 = -0.8193832599118943
-0.8193832599118943 x 100 = -81.94%