-89.23% is the change from 743 to 80
Calculation steps:
[( 80 - 743 ) ÷ 743] x 100 = -89.23%
Formula
Percentage change = [(80 - 743) / 743] x 100
Subtract the new number by the original number
80 - 743 = -663
-663 ÷ 743 = -0.892328398384926
-0.892328398384926 x 100 = -89.23%