-2.9% is the change from 863 to 838
Calculation steps:
[( 838 - 863 ) ÷ 863] x 100 = -2.9%
Formula
Percentage change = [(838 - 863) / 863] x 100
Subtract the new number by the original number
838 - 863 = -25
-25 ÷ 863 = -0.028968713789107765
-0.028968713789107765 x 100 = -2.9%