-79.85% is the change from 407 to 82
Calculation steps:
[( 82 - 407 ) ÷ 407] x 100 = -79.85%
Formula
Percentage change = [(82 - 407) / 407] x 100
Subtract the new number by the original number
82 - 407 = -325
-325 ÷ 407 = -0.7985257985257985
-0.7985257985257985 x 100 = -79.85%