-88.56% is the change from 699 to 80
Calculation steps:
[( 80 - 699 ) ÷ 699] x 100 = -88.56%
Formula
Percentage change = [(80 - 699) / 699] x 100
Subtract the new number by the original number
80 - 699 = -619
-619 ÷ 699 = -0.8855507868383404
-0.8855507868383404 x 100 = -88.56%