3.68% is the change from 598 to 620
Calculation steps:
[( 620 - 598 ) ÷ 598] x 100 = 3.68%
Formula
Percentage change = [(620 - 598) / 598] x 100
Subtract the new number by the original number
620 - 598 = 22
22 ÷ 598 = 0.03678929765886288
0.03678929765886288 x 100 = 3.68%