-21.86% is the change from 869 to 679
Calculation steps:
[( 679 - 869 ) ÷ 869] x 100 = -21.86%
Formula
Percentage change = [(679 - 869) / 869] x 100
Subtract the new number by the original number
679 - 869 = -190
-190 ÷ 869 = -0.2186421173762946
-0.2186421173762946 x 100 = -21.86%