-89.19% is the change from 740 to 80
Calculation steps:
[( 80 - 740 ) ÷ 740] x 100 = -89.19%
Formula
Percentage change = [(80 - 740) / 740] x 100
Subtract the new number by the original number
80 - 740 = -660
-660 ÷ 740 = -0.8918918918918919
-0.8918918918918919 x 100 = -89.19%