0.62% is the change from 644 to 648
Calculation steps:
[( 648 - 644 ) ÷ 644] x 100 = 0.62%
Formula
Percentage change = [(648 - 644) / 644] x 100
Subtract the new number by the original number
648 - 644 = 4
4 ÷ 644 = 0.006211180124223602
0.006211180124223602 x 100 = 0.62%