19.97% is the change from 641 to 769
Calculation steps:
[( 769 - 641 ) ÷ 641] x 100 = 19.97%
Formula
Percentage change = [(769 - 641) / 641] x 100
Subtract the new number by the original number
769 - 641 = 128
128 ÷ 641 = 0.1996879875195008
0.1996879875195008 x 100 = 19.97%