-89.3% is the change from 458 to 49
Calculation steps:
[( 49 - 458 ) ÷ 458] x 100 = -89.3%
Formula
Percentage change = [(49 - 458) / 458] x 100
Subtract the new number by the original number
49 - 458 = -409
-409 ÷ 458 = -0.8930131004366813
-0.8930131004366813 x 100 = -89.3%