-86.07% is the change from 596 to 83
Calculation steps:
[( 83 - 596 ) ÷ 596] x 100 = -86.07%
Formula
Percentage change = [(83 - 596) / 596] x 100
Subtract the new number by the original number
83 - 596 = -513
-513 ÷ 596 = -0.860738255033557
-0.860738255033557 x 100 = -86.07%