31.23% is the change from 618 to 811
Calculation steps:
[( 811 - 618 ) ÷ 618] x 100 = 31.23%
Formula
Percentage change = [(811 - 618) / 618] x 100
Subtract the new number by the original number
811 - 618 = 193
193 ÷ 618 = 0.3122977346278317
0.3122977346278317 x 100 = 31.23%