-96.96% is the change from 593 to 18
Calculation steps:
[( 18 - 593 ) ÷ 593] x 100 = -96.96%
Formula
Percentage change = [(18 - 593) / 593] x 100
Subtract the new number by the original number
18 - 593 = -575
-575 ÷ 593 = -0.96964586846543
-0.96964586846543 x 100 = -96.96%