-20.26% is the change from 859 to 685
Calculation steps:
[( 685 - 859 ) ÷ 859] x 100 = -20.26%
Formula
Percentage change = [(685 - 859) / 859] x 100
Subtract the new number by the original number
685 - 859 = -174
-174 ÷ 859 = -0.20256111757857975
-0.20256111757857975 x 100 = -20.26%