-80.88% is the change from 868 to 166
Calculation steps:
[( 166 - 868 ) ÷ 868] x 100 = -80.88%
Formula
Percentage change = [(166 - 868) / 868] x 100
Subtract the new number by the original number
166 - 868 = -702
-702 ÷ 868 = -0.8087557603686636
-0.8087557603686636 x 100 = -80.88%