-83.22% is the change from 769 to 129
Calculation steps:
[( 129 - 769 ) ÷ 769] x 100 = -83.22%
Formula
Percentage change = [(129 - 769) / 769] x 100
Subtract the new number by the original number
129 - 769 = -640
-640 ÷ 769 = -0.8322496749024707
-0.8322496749024707 x 100 = -83.22%