-80.97% is the change from 431 to 82
Calculation steps:
[( 82 - 431 ) ÷ 431] x 100 = -80.97%
Formula
Percentage change = [(82 - 431) / 431] x 100
Subtract the new number by the original number
82 - 431 = -349
-349 ÷ 431 = -0.8097447795823666
-0.8097447795823666 x 100 = -80.97%