103.13% is the change from 224 to 455
Calculation steps:
[( 455 - 224 ) ÷ 224] x 100 = 103.13%
Formula
Percentage change = [(455 - 224) / 224] x 100
Subtract the new number by the original number
455 - 224 = 231
231 ÷ 224 = 1.03125
1.03125 x 100 = 103.13%