-99.88% is the change from 859 to 1
Calculation steps:
[( 1 - 859 ) ÷ 859] x 100 = -99.88%
Formula
Percentage change = [(1 - 859) / 859] x 100
Subtract the new number by the original number
1 - 859 = -858
-858 ÷ 859 = -0.9988358556461001
-0.9988358556461001 x 100 = -99.88%