5.34% is the change from 637 to 671
Calculation steps:
[( 671 - 637 ) ÷ 637] x 100 = 5.34%
Formula
Percentage change = [(671 - 637) / 637] x 100
Subtract the new number by the original number
671 - 637 = 34
34 ÷ 637 = 0.05337519623233909
0.05337519623233909 x 100 = 5.34%