-5.75% is the change from 869 to 819
Calculation steps:
[( 819 - 869 ) ÷ 869] x 100 = -5.75%
Formula
Percentage change = [(819 - 869) / 869] x 100
Subtract the new number by the original number
819 - 869 = -50
-50 ÷ 869 = -0.05753739930955121
-0.05753739930955121 x 100 = -5.75%