4.25% is the change from 636 to 663
Calculation steps:
[( 663 - 636 ) ÷ 636] x 100 = 4.25%
Formula
Percentage change = [(663 - 636) / 636] x 100
Subtract the new number by the original number
663 - 636 = 27
27 ÷ 636 = 0.04245283018867924
0.04245283018867924 x 100 = 4.25%