-3.48% is the change from 863 to 833
Calculation steps:
[( 833 - 863 ) ÷ 863] x 100 = -3.48%
Formula
Percentage change = [(833 - 863) / 863] x 100
Subtract the new number by the original number
833 - 863 = -30
-30 ÷ 863 = -0.03476245654692932
-0.03476245654692932 x 100 = -3.48%