-98.03% is the change from 458 to 9
Calculation steps:
[( 9 - 458 ) ÷ 458] x 100 = -98.03%
Formula
Percentage change = [(9 - 458) / 458] x 100
Subtract the new number by the original number
9 - 458 = -449
-449 ÷ 458 = -0.980349344978166
-0.980349344978166 x 100 = -98.03%