91.49% is the change from 235 to 450
Calculation steps:
[( 450 - 235 ) ÷ 235] x 100 = 91.49%
Formula
Percentage change = [(450 - 235) / 235] x 100
Subtract the new number by the original number
450 - 235 = 215
215 ÷ 235 = 0.9148936170212766
0.9148936170212766 x 100 = 91.49%