-98.81% is the change from 837 to 10
Calculation steps:
[( 10 - 837 ) ÷ 837] x 100 = -98.81%
Formula
Percentage change = [(10 - 837) / 837] x 100
Subtract the new number by the original number
10 - 837 = -827
-827 ÷ 837 = -0.98805256869773
-0.98805256869773 x 100 = -98.81%