3.43% is the change from 613 to 634
Calculation steps:
[( 634 - 613 ) ÷ 613] x 100 = 3.43%
Formula
Percentage change = [(634 - 613) / 613] x 100
Subtract the new number by the original number
634 - 613 = 21
21 ÷ 613 = 0.03425774877650897
0.03425774877650897 x 100 = 3.43%