21.65% is the change from 508 to 618
Calculation steps:
[( 618 - 508 ) ÷ 508] x 100 = 21.65%
Formula
Percentage change = [(618 - 508) / 508] x 100
Subtract the new number by the original number
618 - 508 = 110
110 ÷ 508 = 0.21653543307086615
0.21653543307086615 x 100 = 21.65%