20.92% is the change from 502 to 607
Calculation steps:
[( 607 - 502 ) ÷ 502] x 100 = 20.92%
Formula
Percentage change = [(607 - 502) / 502] x 100
Subtract the new number by the original number
607 - 502 = 105
105 ÷ 502 = 0.20916334661354583
0.20916334661354583 x 100 = 20.92%