2.05% is the change from 635 to 648
Calculation steps:
[( 648 - 635 ) ÷ 635] x 100 = 2.05%
Formula
Percentage change = [(648 - 635) / 635] x 100
Subtract the new number by the original number
648 - 635 = 13
13 ÷ 635 = 0.02047244094488189
0.02047244094488189 x 100 = 2.05%