55.01% is the change from 509 to 789
Calculation steps:
[( 789 - 509 ) ÷ 509] x 100 = 55.01%
Formula
Percentage change = [(789 - 509) / 509] x 100
Subtract the new number by the original number
789 - 509 = 280
280 ÷ 509 = 0.550098231827112
0.550098231827112 x 100 = 55.01%