2.95% is the change from 643 to 662
Calculation steps:
[( 662 - 643 ) ÷ 643] x 100 = 2.95%
Formula
Percentage change = [(662 - 643) / 643] x 100
Subtract the new number by the original number
662 - 643 = 19
19 ÷ 643 = 0.029548989113530325
0.029548989113530325 x 100 = 2.95%