-91.47% is the change from 457 to 39
Calculation steps:
[( 39 - 457 ) ÷ 457] x 100 = -91.47%
Formula
Percentage change = [(39 - 457) / 457] x 100
Subtract the new number by the original number
39 - 457 = -418
-418 ÷ 457 = -0.9146608315098468
-0.9146608315098468 x 100 = -91.47%