22.4% is the change from 509 to 623
Calculation steps:
[( 623 - 509 ) ÷ 509] x 100 = 22.4%
Formula
Percentage change = [(623 - 509) / 509] x 100
Subtract the new number by the original number
623 - 509 = 114
114 ÷ 509 = 0.22396856581532418
0.22396856581532418 x 100 = 22.4%