-49.67% is the change from 455 to 229
Calculation steps:
[( 229 - 455 ) ÷ 455] x 100 = -49.67%
Formula
Percentage change = [(229 - 455) / 455] x 100
Subtract the new number by the original number
229 - 455 = -226
-226 ÷ 455 = -0.4967032967032967
-0.4967032967032967 x 100 = -49.67%