-3.71% is the change from 863 to 831
Calculation steps:
[( 831 - 863 ) ÷ 863] x 100 = -3.71%
Formula
Percentage change = [(831 - 863) / 863] x 100
Subtract the new number by the original number
831 - 863 = -32
-32 ÷ 863 = -0.03707995365005794
-0.03707995365005794 x 100 = -3.71%