-4.37% is the change from 869 to 831
Calculation steps:
[( 831 - 869 ) ÷ 869] x 100 = -4.37%
Formula
Percentage change = [(831 - 869) / 869] x 100
Subtract the new number by the original number
831 - 869 = -38
-38 ÷ 869 = -0.04372842347525892
-0.04372842347525892 x 100 = -4.37%