88.28% is the change from 239 to 450
Calculation steps:
[( 450 - 239 ) ÷ 239] x 100 = 88.28%
Formula
Percentage change = [(450 - 239) / 239] x 100
Subtract the new number by the original number
450 - 239 = 211
211 ÷ 239 = 0.8828451882845189
0.8828451882845189 x 100 = 88.28%