8.48% is the change from 637 to 691
Calculation steps:
[( 691 - 637 ) ÷ 637] x 100 = 8.48%
Formula
Percentage change = [(691 - 637) / 637] x 100
Subtract the new number by the original number
691 - 637 = 54
54 ÷ 637 = 0.0847723704866562
0.0847723704866562 x 100 = 8.48%