-68.22% is the change from 258 to 82
Calculation steps:
[( 82 - 258 ) ÷ 258] x 100 = -68.22%
Formula
Percentage change = [(82 - 258) / 258] x 100
Subtract the new number by the original number
82 - 258 = -176
-176 ÷ 258 = -0.6821705426356589
-0.6821705426356589 x 100 = -68.22%