39.72% is the change from 579 to 809
Calculation steps:
[( 809 - 579 ) ÷ 579] x 100 = 39.72%
Formula
Percentage change = [(809 - 579) / 579] x 100
Subtract the new number by the original number
809 - 579 = 230
230 ÷ 579 = 0.39723661485319517
0.39723661485319517 x 100 = 39.72%