-80.58% is the change from 798 to 155
Calculation steps:
[( 155 - 798 ) ÷ 798] x 100 = -80.58%
Formula
Percentage change = [(155 - 798) / 798] x 100
Subtract the new number by the original number
155 - 798 = -643
-643 ÷ 798 = -0.8057644110275689
-0.8057644110275689 x 100 = -80.58%