34.11% is the change from 604 to 810
Calculation steps:
[( 810 - 604 ) ÷ 604] x 100 = 34.11%
Formula
Percentage change = [(810 - 604) / 604] x 100
Subtract the new number by the original number
810 - 604 = 206
206 ÷ 604 = 0.34105960264900664
0.34105960264900664 x 100 = 34.11%