-79.4% is the change from 869 to 179
Calculation steps:
[( 179 - 869 ) ÷ 869] x 100 = -79.4%
Formula
Percentage change = [(179 - 869) / 869] x 100
Subtract the new number by the original number
179 - 869 = -690
-690 ÷ 869 = -0.7940161104718066
-0.7940161104718066 x 100 = -79.4%