-3.46% is the change from 868 to 838
Calculation steps:
[( 838 - 868 ) ÷ 868] x 100 = -3.46%
Formula
Percentage change = [(838 - 868) / 868] x 100
Subtract the new number by the original number
838 - 868 = -30
-30 ÷ 868 = -0.03456221198156682
-0.03456221198156682 x 100 = -3.46%