0.78% is the change from 642 to 647
Calculation steps:
[( 647 - 642 ) ÷ 642] x 100 = 0.78%
Formula
Percentage change = [(647 - 642) / 642] x 100
Subtract the new number by the original number
647 - 642 = 5
5 ÷ 642 = 0.00778816199376947
0.00778816199376947 x 100 = 0.78%