-89.89% is the change from 791 to 80
Calculation steps:
[( 80 - 791 ) ÷ 791] x 100 = -89.89%
Formula
Percentage change = [(80 - 791) / 791] x 100
Subtract the new number by the original number
80 - 791 = -711
-711 ÷ 791 = -0.8988621997471555
-0.8988621997471555 x 100 = -89.89%