-39.21% is the change from 454 to 276
Calculation steps:
[( 276 - 454 ) ÷ 454] x 100 = -39.21%
Formula
Percentage change = [(276 - 454) / 454] x 100
Subtract the new number by the original number
276 - 454 = -178
-178 ÷ 454 = -0.3920704845814978
-0.3920704845814978 x 100 = -39.21%