-82.41% is the change from 580 to 102
Calculation steps:
[( 102 - 580 ) ÷ 580] x 100 = -82.41%
Formula
Percentage change = [(102 - 580) / 580] x 100
Subtract the new number by the original number
102 - 580 = -478
-478 ÷ 580 = -0.8241379310344827
-0.8241379310344827 x 100 = -82.41%