-80.23% is the change from 865 to 171
Calculation steps:
[( 171 - 865 ) ÷ 865] x 100 = -80.23%
Formula
Percentage change = [(171 - 865) / 865] x 100
Subtract the new number by the original number
171 - 865 = -694
-694 ÷ 865 = -0.8023121387283237
-0.8023121387283237 x 100 = -80.23%