-89.6% is the change from 769 to 80
Calculation steps:
[( 80 - 769 ) ÷ 769] x 100 = -89.6%
Formula
Percentage change = [(80 - 769) / 769] x 100
Subtract the new number by the original number
80 - 769 = -689
-689 ÷ 769 = -0.8959687906371911
-0.8959687906371911 x 100 = -89.6%