7.25% is the change from 579 to 621
Calculation steps:
[( 621 - 579 ) ÷ 579] x 100 = 7.25%
Formula
Percentage change = [(621 - 579) / 579] x 100
Subtract the new number by the original number
621 - 579 = 42
42 ÷ 579 = 0.07253886010362694
0.07253886010362694 x 100 = 7.25%