-99.34% is the change from 605 to 4
Calculation steps:
[( 4 - 605 ) ÷ 605] x 100 = -99.34%
Formula
Percentage change = [(4 - 605) / 605] x 100
Subtract the new number by the original number
4 - 605 = -601
-601 ÷ 605 = -0.9933884297520661
-0.9933884297520661 x 100 = -99.34%