-16.51% is the change from 769 to 642
Calculation steps:
[( 642 - 769 ) ÷ 769] x 100 = -16.51%
Formula
Percentage change = [(642 - 769) / 769] x 100
Subtract the new number by the original number
642 - 769 = -127
-127 ÷ 769 = -0.16514954486345904
-0.16514954486345904 x 100 = -16.51%