24.25% is the change from 499 to 620
Calculation steps:
[( 620 - 499 ) ÷ 499] x 100 = 24.25%
Formula
Percentage change = [(620 - 499) / 499] x 100
Subtract the new number by the original number
620 - 499 = 121
121 ÷ 499 = 0.24248496993987975
0.24248496993987975 x 100 = 24.25%