30.06% is the change from 509 to 662
Calculation steps:
[( 662 - 509 ) ÷ 509] x 100 = 30.06%
Formula
Percentage change = [(662 - 509) / 509] x 100
Subtract the new number by the original number
662 - 509 = 153
153 ÷ 509 = 0.3005893909626719
0.3005893909626719 x 100 = 30.06%