3.43% is the change from 641 to 663
Calculation steps:
[( 663 - 641 ) ÷ 641] x 100 = 3.43%
Formula
Percentage change = [(663 - 641) / 641] x 100
Subtract the new number by the original number
663 - 641 = 22
22 ÷ 641 = 0.0343213728549142
0.0343213728549142 x 100 = 3.43%