-13.88% is the change from 454 to 391
Calculation steps:
[( 391 - 454 ) ÷ 454] x 100 = -13.88%
Formula
Percentage change = [(391 - 454) / 454] x 100
Subtract the new number by the original number
391 - 454 = -63
-63 ÷ 454 = -0.13876651982378854
-0.13876651982378854 x 100 = -13.88%