-85.93% is the change from 860 to 121
Calculation steps:
[( 121 - 860 ) ÷ 860] x 100 = -85.93%
Formula
Percentage change = [(121 - 860) / 860] x 100
Subtract the new number by the original number
121 - 860 = -739
-739 ÷ 860 = -0.8593023255813953
-0.8593023255813953 x 100 = -85.93%