0.47% is the change from 641 to 644
Calculation steps:
[( 644 - 641 ) ÷ 641] x 100 = 0.47%
Formula
Percentage change = [(644 - 641) / 641] x 100
Subtract the new number by the original number
644 - 641 = 3
3 ÷ 641 = 0.0046801872074883
0.0046801872074883 x 100 = 0.47%