-38.99% is the change from 454 to 277
Calculation steps:
[( 277 - 454 ) ÷ 454] x 100 = -38.99%
Formula
Percentage change = [(277 - 454) / 454] x 100
Subtract the new number by the original number
277 - 454 = -177
-177 ÷ 454 = -0.3898678414096916
-0.3898678414096916 x 100 = -38.99%