-41.01% is the change from 139 to 82
Calculation steps:
[( 82 - 139 ) ÷ 139] x 100 = -41.01%
Formula
Percentage change = [(82 - 139) / 139] x 100
Subtract the new number by the original number
82 - 139 = -57
-57 ÷ 139 = -0.41007194244604317
-0.41007194244604317 x 100 = -41.01%