89.96% is the change from 239 to 454
Calculation steps:
[( 454 - 239 ) ÷ 239] x 100 = 89.96%
Formula
Percentage change = [(454 - 239) / 239] x 100
Subtract the new number by the original number
454 - 239 = 215
215 ÷ 239 = 0.899581589958159
0.899581589958159 x 100 = 89.96%