58.74% is the change from 509 to 808
Calculation steps:
[( 808 - 509 ) ÷ 509] x 100 = 58.74%
Formula
Percentage change = [(808 - 509) / 509] x 100
Subtract the new number by the original number
808 - 509 = 299
299 ÷ 509 = 0.587426326129666
0.587426326129666 x 100 = 58.74%