-86.53% is the change from 616 to 83
Calculation steps:
[( 83 - 616 ) ÷ 616] x 100 = -86.53%
Formula
Percentage change = [(83 - 616) / 616] x 100
Subtract the new number by the original number
83 - 616 = -533
-533 ÷ 616 = -0.8652597402597403
-0.8652597402597403 x 100 = -86.53%