-80.46% is the change from 834 to 163
Calculation steps:
[( 163 - 834 ) ÷ 834] x 100 = -80.46%
Formula
Percentage change = [(163 - 834) / 834] x 100
Subtract the new number by the original number
163 - 834 = -671
-671 ÷ 834 = -0.8045563549160671
-0.8045563549160671 x 100 = -80.46%