-81.59% is the change from 891 to 164
Calculation steps:
[( 164 - 891 ) ÷ 891] x 100 = -81.59%
Formula
Percentage change = [(164 - 891) / 891] x 100
Subtract the new number by the original number
164 - 891 = -727
-727 ÷ 891 = -0.8159371492704826
-0.8159371492704826 x 100 = -81.59%