-97.02% is the change from 605 to 18
Calculation steps:
[( 18 - 605 ) ÷ 605] x 100 = -97.02%
Formula
Percentage change = [(18 - 605) / 605] x 100
Subtract the new number by the original number
18 - 605 = -587
-587 ÷ 605 = -0.9702479338842975
-0.9702479338842975 x 100 = -97.02%