23.97% is the change from 509 to 631
Calculation steps:
[( 631 - 509 ) ÷ 509] x 100 = 23.97%
Formula
Percentage change = [(631 - 509) / 509] x 100
Subtract the new number by the original number
631 - 509 = 122
122 ÷ 509 = 0.23968565815324164
0.23968565815324164 x 100 = 23.97%