15.65% is the change from 620 to 717
Calculation steps:
[( 717 - 620 ) ÷ 620] x 100 = 15.65%
Formula
Percentage change = [(717 - 620) / 620] x 100
Subtract the new number by the original number
717 - 620 = 97
97 ÷ 620 = 0.15645161290322582
0.15645161290322582 x 100 = 15.65%