30.11% is the change from 475 to 618
Calculation steps:
[( 618 - 475 ) ÷ 475] x 100 = 30.11%
Formula
Percentage change = [(618 - 475) / 475] x 100
Subtract the new number by the original number
618 - 475 = 143
143 ÷ 475 = 0.30105263157894735
0.30105263157894735 x 100 = 30.11%