-21.06% is the change from 869 to 686
Calculation steps:
[( 686 - 869 ) ÷ 869] x 100 = -21.06%
Formula
Percentage change = [(686 - 869) / 869] x 100
Subtract the new number by the original number
686 - 869 = -183
-183 ÷ 869 = -0.21058688147295743
-0.21058688147295743 x 100 = -21.06%