5.06% is the change from 613 to 644
Calculation steps:
[( 644 - 613 ) ÷ 613] x 100 = 5.06%
Formula
Percentage change = [(644 - 613) / 613] x 100
Subtract the new number by the original number
644 - 613 = 31
31 ÷ 613 = 0.05057096247960848
0.05057096247960848 x 100 = 5.06%