-89.21% is the change from 454 to 49
Calculation steps:
[( 49 - 454 ) ÷ 454] x 100 = -89.21%
Formula
Percentage change = [(49 - 454) / 454] x 100
Subtract the new number by the original number
49 - 454 = -405
-405 ÷ 454 = -0.8920704845814978
-0.8920704845814978 x 100 = -89.21%