-39.87% is the change from 454 to 273
Calculation steps:
[( 273 - 454 ) ÷ 454] x 100 = -39.87%
Formula
Percentage change = [(273 - 454) / 454] x 100
Subtract the new number by the original number
273 - 454 = -181
-181 ÷ 454 = -0.3986784140969163
-0.3986784140969163 x 100 = -39.87%