4.71% is the change from 637 to 667
Calculation steps:
[( 667 - 637 ) ÷ 637] x 100 = 4.71%
Formula
Percentage change = [(667 - 637) / 637] x 100
Subtract the new number by the original number
667 - 637 = 30
30 ÷ 637 = 0.04709576138147567
0.04709576138147567 x 100 = 4.71%