-81.15% is the change from 854 to 161
Calculation steps:
[( 161 - 854 ) ÷ 854] x 100 = -81.15%
Formula
Percentage change = [(161 - 854) / 854] x 100
Subtract the new number by the original number
161 - 854 = -693
-693 ÷ 854 = -0.8114754098360656
-0.8114754098360656 x 100 = -81.15%