31.21% is the change from 471 to 618
Calculation steps:
[( 618 - 471 ) ÷ 471] x 100 = 31.21%
Formula
Percentage change = [(618 - 471) / 471] x 100
Subtract the new number by the original number
618 - 471 = 147
147 ÷ 471 = 0.31210191082802546
0.31210191082802546 x 100 = 31.21%