-98.5% is the change from 865 to 13
Calculation steps:
[( 13 - 865 ) ÷ 865] x 100 = -98.5%
Formula
Percentage change = [(13 - 865) / 865] x 100
Subtract the new number by the original number
13 - 865 = -852
-852 ÷ 865 = -0.9849710982658959
-0.9849710982658959 x 100 = -98.5%