-81.92% is the change from 459 to 83
Calculation steps:
[( 83 - 459 ) ÷ 459] x 100 = -81.92%
Formula
Percentage change = [(83 - 459) / 459] x 100
Subtract the new number by the original number
83 - 459 = -376
-376 ÷ 459 = -0.8191721132897604
-0.8191721132897604 x 100 = -81.92%