-82.8% is the change from 599 to 103
Calculation steps:
[( 103 - 599 ) ÷ 599] x 100 = -82.8%
Formula
Percentage change = [(103 - 599) / 599] x 100
Subtract the new number by the original number
103 - 599 = -496
-496 ÷ 599 = -0.8280467445742905
-0.8280467445742905 x 100 = -82.8%