-99.77% is the change from 859 to 2
Calculation steps:
[( 2 - 859 ) ÷ 859] x 100 = -99.77%
Formula
Percentage change = [(2 - 859) / 859] x 100
Subtract the new number by the original number
2 - 859 = -857
-857 ÷ 859 = -0.9976717112922002
-0.9976717112922002 x 100 = -99.77%