-96.53% is the change from 865 to 30
Calculation steps:
[( 30 - 865 ) ÷ 865] x 100 = -96.53%
Formula
Percentage change = [(30 - 865) / 865] x 100
Subtract the new number by the original number
30 - 865 = -835
-835 ÷ 865 = -0.9653179190751445
-0.9653179190751445 x 100 = -96.53%