-99.33% is the change from 600 to 4
Calculation steps:
[( 4 - 600 ) ÷ 600] x 100 = -99.33%
Formula
Percentage change = [(4 - 600) / 600] x 100
Subtract the new number by the original number
4 - 600 = -596
-596 ÷ 600 = -0.9933333333333333
-0.9933333333333333 x 100 = -99.33%