-88.36% is the change from 859 to 100
Calculation steps:
[( 100 - 859 ) ÷ 859] x 100 = -88.36%
Formula
Percentage change = [(100 - 859) / 859] x 100
Subtract the new number by the original number
100 - 859 = -759
-759 ÷ 859 = -0.8835855646100116
-0.8835855646100116 x 100 = -88.36%