19.41% is the change from 644 to 769
Calculation steps:
[( 769 - 644 ) ÷ 644] x 100 = 19.41%
Formula
Percentage change = [(769 - 644) / 644] x 100
Subtract the new number by the original number
769 - 644 = 125
125 ÷ 644 = 0.19409937888198758
0.19409937888198758 x 100 = 19.41%