104.55% is the change from 220 to 450
Calculation steps:
[( 450 - 220 ) ÷ 220] x 100 = 104.55%
Formula
Percentage change = [(450 - 220) / 220] x 100
Subtract the new number by the original number
450 - 220 = 230
230 ÷ 220 = 1.0454545454545454
1.0454545454545454 x 100 = 104.55%