-80.34% is the change from 417 to 82
Calculation steps:
[( 82 - 417 ) ÷ 417] x 100 = -80.34%
Formula
Percentage change = [(82 - 417) / 417] x 100
Subtract the new number by the original number
82 - 417 = -335
-335 ÷ 417 = -0.8033573141486811
-0.8033573141486811 x 100 = -80.34%