-99.88% is the change from 865 to 1
Calculation steps:
[( 1 - 865 ) ÷ 865] x 100 = -99.88%
Formula
Percentage change = [(1 - 865) / 865] x 100
Subtract the new number by the original number
1 - 865 = -864
-864 ÷ 865 = -0.9988439306358381
-0.9988439306358381 x 100 = -99.88%