-93.17% is the change from 454 to 31
Calculation steps:
[( 31 - 454 ) ÷ 454] x 100 = -93.17%
Formula
Percentage change = [(31 - 454) / 454] x 100
Subtract the new number by the original number
31 - 454 = -423
-423 ÷ 454 = -0.9317180616740088
-0.9317180616740088 x 100 = -93.17%