28.49% is the change from 509 to 654
Calculation steps:
[( 654 - 509 ) ÷ 509] x 100 = 28.49%
Formula
Percentage change = [(654 - 509) / 509] x 100
Subtract the new number by the original number
654 - 509 = 145
145 ÷ 509 = 0.28487229862475444
0.28487229862475444 x 100 = 28.49%