-80.45% is the change from 798 to 156
Calculation steps:
[( 156 - 798 ) ÷ 798] x 100 = -80.45%
Formula
Percentage change = [(156 - 798) / 798] x 100
Subtract the new number by the original number
156 - 798 = -642
-642 ÷ 798 = -0.8045112781954887
-0.8045112781954887 x 100 = -80.45%