20.08% is the change from 239 to 287
Calculation steps:
[( 287 - 239 ) ÷ 239] x 100 = 20.08%
Formula
Percentage change = [(287 - 239) / 239] x 100
Subtract the new number by the original number
287 - 239 = 48
48 ÷ 239 = 0.200836820083682
0.200836820083682 x 100 = 20.08%