-99.5% is the change from 598 to 3
Calculation steps:
[( 3 - 598 ) ÷ 598] x 100 = -99.5%
Formula
Percentage change = [(3 - 598) / 598] x 100
Subtract the new number by the original number
3 - 598 = -595
-595 ÷ 598 = -0.9949832775919732
-0.9949832775919732 x 100 = -99.5%