255.22% is the change from 230 to 817
Calculation steps:
[( 817 - 230 ) ÷ 230] x 100 = 255.22%
Formula
Percentage change = [(817 - 230) / 230] x 100
Subtract the new number by the original number
817 - 230 = 587
587 ÷ 230 = 2.5521739130434784
2.5521739130434784 x 100 = 255.22%