-16.64% is the change from 769 to 641
Calculation steps:
[( 641 - 769 ) ÷ 769] x 100 = -16.64%
Formula
Percentage change = [(641 - 769) / 769] x 100
Subtract the new number by the original number
641 - 769 = -128
-128 ÷ 769 = -0.16644993498049415
-0.16644993498049415 x 100 = -16.64%