-80.18% is the change from 868 to 172
Calculation steps:
[( 172 - 868 ) ÷ 868] x 100 = -80.18%
Formula
Percentage change = [(172 - 868) / 868] x 100
Subtract the new number by the original number
172 - 868 = -696
-696 ÷ 868 = -0.8018433179723502
-0.8018433179723502 x 100 = -80.18%