-3.34% is the change from 867 to 838
Calculation steps:
[( 838 - 867 ) ÷ 867] x 100 = -3.34%
Formula
Percentage change = [(838 - 867) / 867] x 100
Subtract the new number by the original number
838 - 867 = -29
-29 ÷ 867 = -0.03344867358708189
-0.03344867358708189 x 100 = -3.34%