-96.97% is the change from 595 to 18
Calculation steps:
[( 18 - 595 ) ÷ 595] x 100 = -96.97%
Formula
Percentage change = [(18 - 595) / 595] x 100
Subtract the new number by the original number
18 - 595 = -577
-577 ÷ 595 = -0.9697478991596639
-0.9697478991596639 x 100 = -96.97%