2.31% is the change from 606 to 620
Calculation steps:
[( 620 - 606 ) ÷ 606] x 100 = 2.31%
Formula
Percentage change = [(620 - 606) / 606] x 100
Subtract the new number by the original number
620 - 606 = 14
14 ÷ 606 = 0.0231023102310231
0.0231023102310231 x 100 = 2.31%