-20.39% is the change from 103 to 82
Calculation steps:
[( 82 - 103 ) ÷ 103] x 100 = -20.39%
Formula
Percentage change = [(82 - 103) / 103] x 100
Subtract the new number by the original number
82 - 103 = -21
-21 ÷ 103 = -0.20388349514563106
-0.20388349514563106 x 100 = -20.39%