-98.84% is the change from 860 to 10
Calculation steps:
[( 10 - 860 ) ÷ 860] x 100 = -98.84%
Formula
Percentage change = [(10 - 860) / 860] x 100
Subtract the new number by the original number
10 - 860 = -850
-850 ÷ 860 = -0.9883720930232558
-0.9883720930232558 x 100 = -98.84%