241.84% is the change from 239 to 817
Calculation steps:
[( 817 - 239 ) ÷ 239] x 100 = 241.84%
Formula
Percentage change = [(817 - 239) / 239] x 100
Subtract the new number by the original number
817 - 239 = 578
578 ÷ 239 = 2.418410041841004
2.418410041841004 x 100 = 241.84%