23.37% is the change from 646 to 797
Calculation steps:
[( 797 - 646 ) ÷ 646] x 100 = 23.37%
Formula
Percentage change = [(797 - 646) / 646] x 100
Subtract the new number by the original number
797 - 646 = 151
151 ÷ 646 = 0.23374613003095976
0.23374613003095976 x 100 = 23.37%