-80.93% is the change from 430 to 82
Calculation steps:
[( 82 - 430 ) ÷ 430] x 100 = -80.93%
Formula
Percentage change = [(82 - 430) / 430] x 100
Subtract the new number by the original number
82 - 430 = -348
-348 ÷ 430 = -0.8093023255813954
-0.8093023255813954 x 100 = -80.93%