2.95% is the change from 644 to 663
Calculation steps:
[( 663 - 644 ) ÷ 644] x 100 = 2.95%
Formula
Percentage change = [(663 - 644) / 644] x 100
Subtract the new number by the original number
663 - 644 = 19
19 ÷ 644 = 0.029503105590062112
0.029503105590062112 x 100 = 2.95%