-80.27% is the change from 816 to 161
Calculation steps:
[( 161 - 816 ) ÷ 816] x 100 = -80.27%
Formula
Percentage change = [(161 - 816) / 816] x 100
Subtract the new number by the original number
161 - 816 = -655
-655 ÷ 816 = -0.8026960784313726
-0.8026960784313726 x 100 = -80.27%