36.74% is the change from 607 to 830
Calculation steps:
[( 830 - 607 ) ÷ 607] x 100 = 36.74%
Formula
Percentage change = [(830 - 607) / 607] x 100
Subtract the new number by the original number
830 - 607 = 223
223 ÷ 607 = 0.3673805601317957
0.3673805601317957 x 100 = 36.74%