3.45% is the change from 579 to 599
Calculation steps:
[( 599 - 579 ) ÷ 579] x 100 = 3.45%
Formula
Percentage change = [(599 - 579) / 579] x 100
Subtract the new number by the original number
599 - 579 = 20
20 ÷ 579 = 0.03454231433506045
0.03454231433506045 x 100 = 3.45%