-80.51% is the change from 826 to 161
Calculation steps:
[( 161 - 826 ) ÷ 826] x 100 = -80.51%
Formula
Percentage change = [(161 - 826) / 826] x 100
Subtract the new number by the original number
161 - 826 = -665
-665 ÷ 826 = -0.8050847457627118
-0.8050847457627118 x 100 = -80.51%