40.4% is the change from 505 to 709
Calculation steps:
[( 709 - 505 ) ÷ 505] x 100 = 40.4%
Formula
Percentage change = [(709 - 505) / 505] x 100
Subtract the new number by the original number
709 - 505 = 204
204 ÷ 505 = 0.403960396039604
0.403960396039604 x 100 = 40.4%