29.08% is the change from 509 to 657
Calculation steps:
[( 657 - 509 ) ÷ 509] x 100 = 29.08%
Formula
Percentage change = [(657 - 509) / 509] x 100
Subtract the new number by the original number
657 - 509 = 148
148 ÷ 509 = 0.2907662082514735
0.2907662082514735 x 100 = 29.08%