-49.67% is the change from 451 to 227
Calculation steps:
[( 227 - 451 ) ÷ 451] x 100 = -49.67%
Formula
Percentage change = [(227 - 451) / 451] x 100
Subtract the new number by the original number
227 - 451 = -224
-224 ÷ 451 = -0.49667405764966743
-0.49667405764966743 x 100 = -49.67%