-23.17% is the change from 859 to 660
Calculation steps:
[( 660 - 859 ) ÷ 859] x 100 = -23.17%
Formula
Percentage change = [(660 - 859) / 859] x 100
Subtract the new number by the original number
660 - 859 = -199
-199 ÷ 859 = -0.23166472642607683
-0.23166472642607683 x 100 = -23.17%