39.1% is the change from 509 to 708
Calculation steps:
[( 708 - 509 ) ÷ 509] x 100 = 39.1%
Formula
Percentage change = [(708 - 509) / 509] x 100
Subtract the new number by the original number
708 - 509 = 199
199 ÷ 509 = 0.39096267190569745
0.39096267190569745 x 100 = 39.1%