5.5% is the change from 636 to 671
Calculation steps:
[( 671 - 636 ) ÷ 636] x 100 = 5.5%
Formula
Percentage change = [(671 - 636) / 636] x 100
Subtract the new number by the original number
671 - 636 = 35
35 ÷ 636 = 0.055031446540880505
0.055031446540880505 x 100 = 5.5%