-23.01% is the change from 865 to 666
Calculation steps:
[( 666 - 865 ) ÷ 865] x 100 = -23.01%
Formula
Percentage change = [(666 - 865) / 865] x 100
Subtract the new number by the original number
666 - 865 = -199
-199 ÷ 865 = -0.2300578034682081
-0.2300578034682081 x 100 = -23.01%