-83.28% is the change from 598 to 100
Calculation steps:
[( 100 - 598 ) ÷ 598] x 100 = -83.28%
Formula
Percentage change = [(100 - 598) / 598] x 100
Subtract the new number by the original number
100 - 598 = -498
-498 ÷ 598 = -0.8327759197324415
-0.8327759197324415 x 100 = -83.28%