-49.34% is the change from 454 to 230
Calculation steps:
[( 230 - 454 ) ÷ 454] x 100 = -49.34%
Formula
Percentage change = [(230 - 454) / 454] x 100
Subtract the new number by the original number
230 - 454 = -224
-224 ÷ 454 = -0.4933920704845815
-0.4933920704845815 x 100 = -49.34%