-2.34% is the change from 854 to 834
Calculation steps:
[( 834 - 854 ) ÷ 854] x 100 = -2.34%
Formula
Percentage change = [(834 - 854) / 854] x 100
Subtract the new number by the original number
834 - 854 = -20
-20 ÷ 854 = -0.0234192037470726
-0.0234192037470726 x 100 = -2.34%