99.12% is the change from 226 to 450
Calculation steps:
[( 450 - 226 ) ÷ 226] x 100 = 99.12%
Formula
Percentage change = [(450 - 226) / 226] x 100
Subtract the new number by the original number
450 - 226 = 224
224 ÷ 226 = 0.9911504424778761
0.9911504424778761 x 100 = 99.12%