97.27% is the change from 220 to 434
Calculation steps:
[( 434 - 220 ) ÷ 220] x 100 = 97.27%
Formula
Percentage change = [(434 - 220) / 220] x 100
Subtract the new number by the original number
434 - 220 = 214
214 ÷ 220 = 0.9727272727272728
0.9727272727272728 x 100 = 97.27%