15.19% is the change from 520 to 599
Calculation steps:
[( 599 - 520 ) ÷ 520] x 100 = 15.19%
Formula
Percentage change = [(599 - 520) / 520] x 100
Subtract the new number by the original number
599 - 520 = 79
79 ÷ 520 = 0.1519230769230769
0.1519230769230769 x 100 = 15.19%