-50.33% is the change from 455 to 226
Calculation steps:
[( 226 - 455 ) ÷ 455] x 100 = -50.33%
Formula
Percentage change = [(226 - 455) / 455] x 100
Subtract the new number by the original number
226 - 455 = -229
-229 ÷ 455 = -0.5032967032967033
-0.5032967032967033 x 100 = -50.33%