-93.45% is the change from 458 to 30
Calculation steps:
[( 30 - 458 ) ÷ 458] x 100 = -93.45%
Formula
Percentage change = [(30 - 458) / 458] x 100
Subtract the new number by the original number
30 - 458 = -428
-428 ÷ 458 = -0.9344978165938864
-0.9344978165938864 x 100 = -93.45%