34.6% is the change from 607 to 817
Calculation steps:
[( 817 - 607 ) ÷ 607] x 100 = 34.6%
Formula
Percentage change = [(817 - 607) / 607] x 100
Subtract the new number by the original number
817 - 607 = 210
210 ÷ 607 = 0.34596375617792424
0.34596375617792424 x 100 = 34.6%