1.89% is the change from 636 to 648
Calculation steps:
[( 648 - 636 ) ÷ 636] x 100 = 1.89%
Formula
Percentage change = [(648 - 636) / 636] x 100
Subtract the new number by the original number
648 - 636 = 12
12 ÷ 636 = 0.018867924528301886
0.018867924528301886 x 100 = 1.89%