-80.62% is the change from 805 to 156
Calculation steps:
[( 156 - 805 ) ÷ 805] x 100 = -80.62%
Formula
Percentage change = [(156 - 805) / 805] x 100
Subtract the new number by the original number
156 - 805 = -649
-649 ÷ 805 = -0.8062111801242235
-0.8062111801242235 x 100 = -80.62%