-86.38% is the change from 602 to 82
Calculation steps:
[( 82 - 602 ) ÷ 602] x 100 = -86.38%
Formula
Percentage change = [(82 - 602) / 602] x 100
Subtract the new number by the original number
82 - 602 = -520
-520 ÷ 602 = -0.8637873754152824
-0.8637873754152824 x 100 = -86.38%